Trump points to mother telling the audience to pay attention to her. This is a common gesture the President uses. I recall on election night after having won he pointed the same way to Kelly Conway. He was giving her credit for her contribution to his historic victory.
The Daily Mail caption...'You look like 55, maybe, 55?' Trump teased Famalia's mom. 'Boy I tell you what, you got up those stairs better than I did. Thank you sweetheart'
The man can certainly charm.