Zen out. Let people act superior if that's how they want to act and don't worry about who knows more or who thinks they know more.
Then again, it could just be that I've learned to tolerate various personalities better as I've gotten older.
E.g. might result in that other silly and superior acting person, getting the job, and you didn't. Or the girls like him better because he seems confident?
But anyway, generally, I like the Zen-out approach. And probably it's possible to be a good self esteem Noob too -- I mean, to stay happy when one tries and fails repeatedly, also when everyone is watching, although maybe not so easy.