As our gaming group ages and we fail more intelligence checks, we've gone mainly to just, "hey you."
Another sign of memory loss: It's the middle of combat and you want to cast fireball on the BBEG, and he's locked in combat with the party's tank (who is very badly wounded). The guy next to you has to lean over and remind you, "Hey, you're playing a paladin, you can't cast fireballs!!!"