What to do when you're bored during lectures

Kudos to Amy and yours truly for original ideas

1. Smack random strangers telling them there was a flying pig trying to rest on their shoulders
2. Spring up from your seat and shout 'Its a boy!'
3. Walk up around the hall 5 times and sit down again like nothing had happened.
4. Walk up to your lecturer and tell him/her she just won a trip to Bali. Even better if you have confetti and mini poppers
5. Laugh out loud everytime the lecturer says 'Okay'
6. Sing your national anthem when you enter the hall.
   

What do you do when you're bored?
Feel free to rate. :D