This is dumb. Maybe he looked so he could tell the girl that she was indeed prettier than her friend. Or maybe it was just reflex to look if someone is standing right behind you. This girl is not fair to this poor boy at all.
I got: "Jughead Jones"! Who are you from "Riverdale?" You are like Jughead, you are interested in the people around you and tries to pick up as many facts about them as possible, you are smart and unique like Jughead.