Cheer one of the batboys. Boo everyother batboy. Be completely indifferent to anything else on the field.
Wear a t-shirt with the word Photon on it. Whenever a wave comes around, explain to every one around you that you are both a particle and a wave.
Intersperse your cheering with lewd comments about your neighbor. Do this without changing tone, or looking at them. “Easy out! Easy out! I want the man in seat 32 B inside me!”