161) have a swearing competition with someone (yell swear words at each other, other languages are allowed)

162) say "smoke weed everyday"

163) put on sunglasses

164) yell "Happy Birthday!" Whenever someone walks into the classroom

165) put water in your mouth and try not to laugh

166) whenever someone wants to talk to you ask them "are you calling me fat?"

167) rock from side to side

168) try to draw on your hand with a pencil

169) throw pieces of rubber/ erasers at someone and see if they realise

170) keep on opening and closing a window