1) Sing, "Mary Had A Little Lamb" on a loop without stopping.
2) Lock somebody in a room.
3) Stare at a sibling, and cackle occasionally.
4) Lock yourself in a room.
5) Tell annoying jokes.
6) Stare at your parents for approximately 10 minutes, then burst out laughing.
7) When somebody looks at you, sneak a finger up your nose.
8) Sing, "Pink Fluffy Unicorns Dancing on Rainbows" on a loop.
9) Jabber on and on about some random subject.
Sorry it's so short. :( If you have ideas, please tell me, and I promise to use them!
EDIT:
These came from Twilightsky11
10) Scream random nonsense
11) Go in a bathroom and start singing, "SMOKE ON THE WATER!"
12) Get the dog/cat to start barking/meowing like crazy and join them.
