
Donald Trump‘s bizarre handshake could be the subject of an anthropology paper. Common features are the “clasp and yank”, in which he jerks the other person’s arm toward himself to throw them off balance, repeated pats on their body to show dominance, and a “death grip” in which he refuses to let go.
He even gets sneaky with it, beginning with an open, palm-up “beggar’s pose” that lulls his victim into a false sense of security, before flipping the dynamic to try to underline that he’s the big dog in this encounter.