Facetor
You’re so out of it you could talk to a wall and it would respond. You do something that’s either completely random or so stupid it makes everyone else look smart.
He facetored by singing opera in the grocery store and throwing apples at the cashier.
She facetored during class by drawing a mustache on the teacher’s face with permanent marker.
They facetored at the concert by jumping on stage and trying to dance with the lead singer.