Whistle the first seven notes of "It's a small World" incessantly

Crack open your briefcase/purse, and while peering inside ask, "Got enough air in there?"

Offer name tags to everyone. Wear yours upside down

Stand silent and motionless in the corner, facing the wall, without getting off.

Carry a cooler which says "human head" on the other side.

Lean over to another passenger and whisper, "Noogie patrol coming!"

When the elevator is silent, look around and ask, "Is that your beeper?" Demand a strip search of all passengers when no one confesses to having a beeper.

Blow your nose and offer to show the contents of your Kleenex to the other passengers.

Stare at another passenger for a while, then announce, "You're one of them!" and move to the far corner of the elevator.

Meow occasionally

Count down "5...4...3...2...1...." and then suddenly duck.

Say "I wonder what these do?" and push the red buttons.

Bring a chair along.

Make explosion noises when anyone presses a button

Say "Ding!" at each floor