360 (The Revolution) drive team members spin in a circle and bow.
2046 (Bear Metal) does this thing where they gather into a circle, put their hands in the middle, and jump.
488 (Team XBot) members make an X with their forearms.
2928 (Viking Robotics) members kind of stroke the horns of the Viking helmets they wear.
That's all I can remember from watching various Pacific Northwest regionals.
