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UCC 3-501(b)(2) provides: Upon demand of the person to whom presentment is made, the person making presentment must (i) exhibit the instrument, (ii) give reasonable identification and, if presentment is made on behalf of another person, reasonable evidence of authority to do so, and (iii) sign a receipt on the instrument for any payment made or surrender the instrument if full payment is made. (Emphasis added).

Section 3-501(b)(2) does not define 'reasonable identification.' 

See Wilner v. O'Donnell, 637 S.W.2d 757, 760 (Mo. App. 1982)(noting that under former UCC § 3-505(1)(b) the maker of a note may require, without dishonor, … ...