I've played with some younger decent players that give kind of a snobbish elite personality. Like they will laugh with their friend if someone makes a stupid mistake at the table or they will ridicule someone's action among their friends.
It can be annoying, but that's part of the live poker experience. You will play with all types of different people: the reg that always has a headset on and never socializes with the table, the loud drunk that splashes around in pots, the old man coffee that only plays the top of his range and asks for a unsweetened tea instead of booze.
You just gotta roll with the punches and play your A-game. Don't let other players personality affect your
poker game.