These observations are a vital part of the ultimate ruling on competency.???Id. (quoting Seward v. State, 2003 WY 116, ?? 32, 76 P.3d 805, 819 (Wyo. 2003)).[??6] The Wyoming Rules of Evidence presume that ???[e]very person is competent to be a witness except as otherwise provided in these rules.??? W.R.E. 601. ???A person is generally competent to testify if he can understand, receive, remember an