[¶ 1] Kyle Dube appeals from a judgment of conviction for the kidnapping and murder of a fifteen-year-old girl, in violation of 17-A M.R.S. §§ 201(1)(A) and 301(1)(B)(1) (2015), entered in the Unified Criminal Docket (Penobscot County, A. Murray, J.) after a two-week jury trial. He argues (1) that the trial court erred by admitting nonexpert opinion testimony regarding handwriting to prove that he wrote a document admitting to the crime, and (2) that his right-to a fair trial was prejudiced by the State’s comments in its closing that the jurors should use their “common sense” in evaluating the evidence. Discerning no error, we affirm the judgment.
I. BACKGROUND
[¶ 2] Viewing the evidence in the light most favorable to the jury’s verdict, the trial record supports the following facts. See State v. Weaver, 2016 ME 12, ¶ 2, 130 A.3d 972. Using a Facebook account in the name of a different man, Kyle Dube arranged to meet the victim, an acquaintance, on a corner outside her home on the evening of May 12, 2013. When the victim arrived at the meeting location, Dube emerged from the bushes wearing a knit ski hat, seized her, and choked her when she resisted. Dube then bound the victim, who was unconscious, put her in the back of his pick-up truck, and drove to a secluded area. When he checked on her, the victim was dead. Dube removed the victim’s clothing, concealed her body with leaves and debris, and threw her clothing into the woods alongside the road as he drove away.1 Following a missing person investigation and the subsequent discovery of the victim’s body, Dube was indicted on May 29, 2013, and pleaded not guilty at his arraignment. The jury trial began on February 23, 2015.
*96[¶ 3] At trial, the State sought to admit a sixteen-page handwritten statement, purportedly written by Dube while he was incarcerated for an unrelated crime, describing the details of the kidnapping and murder. On May 17, 2013, while the criminal investigation was ongoing, Dube reported to the Penobscot County Jail to serve a thirty-day sentence for a traffic offense. Dube was put in a cell adjacent to another inmate, and the two men engaged in written communications via “fishing,” or throwing an object from one cell to another with a string tied to the object for retrieval. When the other inmate was transferred to a different facility, he gave correctional officers sixteen handwritten pages, many double-sided, that he said were given to him by Dube. The pages, which became State’s Exhibit 75, essentially constitute a handwritten, unsigned confession describing details of the kidnapping and murder.2 When called as a witness to identify the document at a pre-trial hearing, however, the inmate refused to answer any questions.3 Thereafter, the State notified Dube and the court that it intended to call several other witnesses to identify the handwriting in the document as Dube’s.
[¶ 4] At Dube’s request, the court conducted voir dire of those witnesses before deciding whether to permit the State to present their testimony to the jury. During voir dire, two of Dube’s former coworkers each testified that, based on his familiarity with Dube’s handwriting on incident reports created in the course of their employment with an assisted living agency, the handwriting on State’s Exhibit 75 resembled Dube’s.4 One co-worker testified that he worked with Dube for about a month almost two years prior to the time of the trial. He said that he observed Dube’s handwriting five or six times during the month they worked together and each sample was five or six sentences long. That co-worker also testified that he had been contacted by law enforcement a few days earlier to look at some documents, and that he told law enforcement that the documents provided — Exhibit 75 — “looked a lot like what I could remember of Kyle’s handwriting where he had — would have some stuff scratched out and that his handwriting wasn’t too — always too straight and that sometimes it did look like chicken scratch.”
[¶ 5] The second co-worker testified that he had worked with Dube for a period of two to three months around eighteen months before the voir dire proceeding and had observed Dube’s handwriting on approximately five occasions. He stated that he had been contacted by law enforcement the week before he was scheduled to give his testimony to “identify a handwriting.” The second co-worker identified the handwriting in State’s Exhibit 75 as being Dube’s without a doubt in his mind.5
*97[¶6] Kyle Dube’s father also underwent voir dire on two occasions relating to his son’s handwriting. Although he stated that he did not recognize the handwriting on some pages of State’s Exhibit 75 on the first occasion, he stated on the second occasion that several pages looked similar to Dube’s handwriting. He testified that he has seen his son’s handwriting many times.
[¶ 7] Finally, Dube’s girlfriend at the time of the kidnapping and murder testified that she recognized the handwriting on a number of pages in State’s Exhibit 75 as being Dube’s. Her familiarity with Dube’s handwriting was based on two letters totaling four pages that she had received from Dube almost two years earlier and had not reviewed since that time. She also testified that she had been contacted by the prosecution one week before her testimony to identify the handwriting in State’s Exhibit 75.
[¶ 8] Over Dube’s objection, the court ruled that these four witnesses could provide testimony identifying the handwriting in State’s Exhibit 75 as Dube’s. On March 6, 2015, after a two-week trial, the jury returned a guilty verdict on both charges, and the court adjudged Dube guilty on May 8, 2015.6 Dube timely appealed his conviction pursuant to 15 M.R.S. § 2115 (2015) and M.R.App. P. 2.
II. DISCUSSION
A. Nonexpert Opinion Testimony Regarding Handwriting
[¶ 9] Dube argues that the court erred in admitting the nonexpert opinion testimony of his co-workers, his girlfriend, and his father regarding the handwriting in State’s Exhibit 75 because (1) these witnesses did not demonstrate sufficient familiarity with Dube’s handwriting to offer nonexpert handwriting opinions; (2) the fact that his co-workers and his girlfriend were approached by law enforcement specifically to identify State’s Exhibit 75 calls the reliability of their testimony into question; and (3) the nonexpert opinion testimony provided no benefit to the jury.
[¶ 10] We review a trial court’s admission of nonexpert opinion testimony for an abuse of discretion. State v. Robinson, 2015 ME 77, ¶ 21, 118 A.3d 242. Pursuant to Maine Rule of Evidence 701, non-expert opinion testimony is admissible if the testimony “is limited to opinions that are: (a) Rationally based on the witness’s perception; and (b) Helpful to clearly understanding the witness’s testimony or to determining a fact in issue.” Nonexpert opinion testimony about handwriting is specifically admissible to “authenticate” a piece of evidence — or “support a finding that the item is what the proponent claims it is.” M.R. Evid. 901(a), (b)(2). Specifically, “[a] nonexpert witness can give his *98opinion authenticating a writing as long as he has sufficient familiarity with the handwriting of the putative writer and that familiarity was not acquired for purposes of the litigation.” State v. Ilsley, 595 A.2d 421, 422-23 (Me.1991) (citing M.R. Evid. 901(b)(2)). “[A]n assertion by the witness coupled with a description of circumstances from which knowledge might reasonably be acquired is ordinarily sufficient to allow him to give an opinion.” Id. at 423 (quotation marks omitted).
[¶ 11] Generally, “[a] showing of limited opportunity to become familiar with the handwriting goes to [the opinion’s] weight, not its admissibility, unless the circumstances satisfy the judge that identification would so lack in reliability that the judge should exclude it.” Field & Murray, Maine Evidence § 901.2 at 535 (6th ed. 2007). Consistent with this principle, we have stated that Maine Rule of Evidence 901 “embodies a flexible approach to authentication reflecting a low burden of proof.” State v. Berke, 2010 ME 34, ¶ 11, 992 A.2d 1290 (quotation marks omitted).
[¶ 12] Dube’s contention that the witnesses did not demonstrate a sufficient degree of familiarity with his handwriting is unconvincing. Dube’s co-workers and his girlfriend each asserted some degree of familiarity with Dube’s handwriting, coupled with a description of the circumstances from which this familiarity was acquired. Although Dube’s father did not describe the circumstances by which he became familiar with his son’s handwriting, he testified that he had seen his son’s handwriting on many occasions. Dube has not provided any relevant authority to suggest that the depth of each witness’s familiarity affected the admissibility of the evidence rather than its weight, especially in light of the “low burden of proof’ for admitting nonexpert opinion testimony about handwriting contained in Rule 901.7 See Berke, 2010 ME 34, ¶ 11, 992 A.2d 1290 (quotation marks omitted).
[¶ 13] Dube’s second contention, that the reliability of the testimony by his co-workers and his girlfriend was questionable because they were asked to look at State’s Exhibit 75 under suggestive circumstances, is also unconvincing as it bears on the admissibility of that evidence. Once the trial court has determined that a witness’s testimony is admissible, “[t]he weight and significance accorded the evidence and the evaluation of witness credibility are the exclusive province of the jury.” See State v. Eaton, 669 A.2d 146, 151 (Me.1995). Further, all three witnesses clearly testified during voir dire that they had been asked to look at State’s Exhibit 75 without being told that it was purportedly written by Dube.
[¶ 14] Finally, Dube’s argument that the nonexpert handwriting testimony should have been excluded because it “provided absolutely no benefit to the jury” *99fails. Dube argues that the testimony did not aid the jury because the jury “could easily have been presented with State’s Exhibit 75 along with the genuine sample of Mr. Dube’s handwriting that was contained in State’s Exhibit 89 which was an incident report completed by Mr. Dube in the course of his employment.” However, the nonexpert handwriting witnesses were not called to compare these two documents for the jury, but rather to opine on the handwriting in State’s Exhibit 75 based on their familiarity with Dube’s handwriting from multiple sources not in evidence. Barring nonexpert handwriting testimony where any undisputed sample of a person’s handwriting is in evidence would significantly undermine, if not eviscerate, the allowance for this testimony under Maine Rule of Evidence 901(b)(2).8
[¶ 15] For these reasons, the court did not err-in admitting the nonexpert opinion testimony. Furthermore, even if the court had erred by admitting the testimony of those particular witnesses, it is highly probable that any error would have been harmless given the additional evidence authenticating State’s Exhibit 75 — including the presence of Dube’s palm print on the document and the identification by the fellow inmate who received the document from Dube. See M.R.U.Crim. P. 52(a).
B. State’s Appeal to the Jury’s “Common Sense”
[¶ 16] Dube also contends that the State’s repeated mention of the jurors’ “common sense” in its closing argument deprived him of his right to a fair trial.9 For example, the prosecutor stated,
when you consider the evidence, when you use your good old-fashioned common sense and reason, your only conclusion — your only verdict can be that [Dube] is guilty of kidnapping and murdering [the victim], because your common sense and reason tells you that [Dube] created the fake [Facebook] account and that it was [Dube] who wanted to meet with [the victim] that night.... When you consider your — the evidence, when you use your common sense and your reason, there is only one verdict that you can reach, and that is that [Dube] kidnapped and murdered [the victim].
Because Dube’s counsel did not object to the prosecutor’s statements at the time, we review for obvious error. See M.R.U.Crim. P. 52(b); State v. Dolloff, 2012 ME 130, ¶ 35, 58 A.3d 1032.
[¶ 17] Dube asserts that the potential danger of appealing to the jury’s common sense is that it could dilute the burden of proof or undercut the gravity of their decision. We disagree. It is well established that “[d]uring closing argument, the State may appeal to the jury’s common sense and experience without crossing the line into prohibited argument.” State v. Ashley, 666 A.2d 103, 106 (Me.1995) (quotation *100marks omitted); see also State v. Schmidt, 2008 ME 151, ¶ 17, 957 A.2d 80. We have held that a trial court’s instruction that “[r]easonable doubt is ... a doubt based on reason and common sense” did not im-permissibly dilute the State’s burden of proof because that instruction “served only to emphasize that the jury should bring good judgment to bear on its deliberations.” 10 State v. Estes, 418 A.2d 1108, 1115 (Me.1980) (emphasis omitted). Here, the State did not even connect the jurors’ “common sense.” to the meaning of reasonable doubt, but merely asked them to apply their common sense when considering the evidence. Cf. id. Generally, jurors’ use of common sense is to be encouraged as long as they ultimately consider whether the evidence establishes guilt beyond a reasonable doubt. And unlike in State v. Uffelman, 626 A.2d 340 (Me.1993), where we considered whether the trial court had “erred in its instruction on reasonable doubt by analogizing the jurors’ responsibility to the decisions they make in their private lives,” id. at 342, here the State did not in any way compare the jurors’ decision to the decisions they make in their personal lives.
[¶ 18] There was no error, much less an error so “highly prejudicial” to Dube that it “so tainted the proceeding as virtually to deprive [him] of a fair trial,” see id. (quotation marks omitted), given the court’s clear instructions to the jury that “proof beyond a reasonable doubt ... is proof of guilt sufficient to convince you ... that the charge is almost certainly true.” We discern no obvious error, and we affirm the judgment.
The entry is:
Judgment affirmed.