Sit wherever you like and piss your pants (be sure to get laughed at) and everyone will move away (and be sure to bring spare clothes). Lame, I know
Or kick the seat in front of you for 1 minute despite being asked to stop, then stop, and strat punching it.
Make hand puppets and talk to yourself about how scary/lame/boring/stupid the movie it.
If all else fails, rip someones hair off for a suvonaire. (lol
)