18. Proclaiming special mastery of stadium scoreboard games
Dubious behavior: Quieting your friends, rubbing your palms together and blurting out something to the effect of "I'm really good at this" when the find-the-baseball-in-the-hat shell game is played on the big screen.
That's totally me. I'm not serious about it but still.
13. Waving to the television cameras
Mitigating circumstances: You are an interpretive dance student on the eve of final examinations; epileptic seizure.
Related behaviors: Trying to start the wave … and failing.