I'm in a strange space, a smallish room without decoration, with a handful of people I don't know. There are these two girls who don't introduce themselves or tell me their names, but I hear in conversation, one is named Liz, and the other is Peg. I think it would be a funny sort of "party trick" to tell them that I can guess their names and make a little act out of it, but they've wandered off into an adjacent larger room, and the moment is lost.