12. Joke around constantly while you’re trying to take prom pics
As a result, you end up with a million awful pictures you’ll have to burn because your date was either a) making funny faces, b) making inappropriate hand gestures, or c) their shenanigans made you make a hideous face. You will have one mediocre/presentable pic, though, because your date will decide to get serious right before it’s time to get in the limo and go.