1.Grimace painfully while smacking your head and muttering, "Shut up! dammit! all of you just shut up".
2.Whistle the first 7 notes of 'it's a small world' incessantly.
3.Crack open your briefcase or purse, and while peering inside asked,"Got enough air in there?"
4.Offer nametags to everyone getting on the elevator. Wears your upside-down.
5.When arriving at your floor,grunt and strain to yank the doors open, then act embarrassed when they open by themselves.
6.Greet everyone getting on the elevator with a warm handshake and ask them to call you an admiral.
7.On the highest floor,hold the door open and demand that it stays open until you hear the penny you dropped down the shaft to 'plink' at the bottom.
8.Stare, grinning, at another person for a while, and then announce,"i've got new socks on."
10.Stare at another person for a while, then scream,"you are one of THEM" and move to the far corner of the elevator.
11.Wear a puppet on your arm and use it to talk to other persons in elevator.
12.When the elevator is silent, look around and ask,'is that your beeper?"
13.Say 'DING' at each floor whenever the door open.
14.Say,"i wonder what all these do!" and push the red button.
15.Listen to the elevator walls with a stethoscope.
16.Draw a little square on the floor and announce to others that this is your "personal space."
17.Make explosion noises when anyone presses a button.
18.Wear 'X-Rays specs' and leer suggestively at other people.
19.Bet the other passengers you can fit a quarter in your nose.
20.Walk on with a cooler that says 'human heads' on the side.
P.S. you can tell more ways in your comments.