These are things to do when you are in an elevator. You may add more things. 

1) When there's only one other person in the elevator, tap them on the shoulder and then pretend it wasn't you.
2) Push the buttons and pretend they give you a shock. Smile, and go back for more.
3) Ask if you can push the button for other people, but push the wrong ones
4) Call the Psychic Hot line from your cell phone and ask if they know what floor your on.
5) Hold the doors open and say your waiting for a friend. After a while, let the doors close, and say, "Hi Greg. How's your day been?"
6) Drop a pen and wait until someone goes to pick it up, then scream, "That's mine!"
7) Bring a camera and take pictures of everyone in the elevator.
8)Move your desk into the elevator and whenever anyone gets on, ask if they have an appointment
9) Lay down the twister mat and ask people if they would like to play.
10) Leave a box in the corner, and when someone gets on, ask them if they can hear ticking.
11) Pretend you are a flight attendant and review emergency procedures and exits with the p*censored*engers.
12) Ask, "Did you feel that?"
13) Stand really close to someone, sniffing them occasionally.
14) When the doors close, announce to the others, "It's okay, don't panic, they open again!"
15) Swat at flies that don't exist.
16) Tell people that you can see their aura.
17) Call out, "Group Hug!" and then enforce it.
18) Grimace painfully while smacking your forehead and muttering, "Shut up, all of you, just shut up!"
19) Crack open your briefcase or purse, and while peering inside, ask, "Got enough air in there?"
20) Stand silently and motionless in the corner, facing the wall, without getting off
21) Stare at another p*censored*enger for a while, then announce in horror, "You're one of THEM!" and back away slowly.
22) Wear a puppet on your hand and use it to talk to the other p*censored*engers
23) Listen to the elevator walls with your stethoscope.
24) Make explosion noises when anyone presses a button.
25) Stare, grinning at another p*censored*enger for a while, then announce, "I have new socks on".
26) Draw a little square on the floor with chalk and announce to the other p*censored*engers, "This is MY personal space"

27) chew gum really really loud adn annoy every one of the elevator!!
28) start doing the chicken dance.
29)start singing the barney song: "i love you you love me we're a happy famialy, with a great big hug and a kiss from me to you won't you say you love me too?
30) take 4giggling girls on to the elevator. and then everyone gets a headache

31) Press the button for the floor you're going to and then kindly step to the back so that others may get in.

32) Press the button for the floor you're going to and as others are walking in, offer to press the button for their floor too.

35) Talk on your cell phone really really loudly.

36) Sing along to the elevater music~! *Do it very loud and horrible*

38) This has to be done in a full elevator. After the doors close and it begins to move, throw your hands in the air and pretend you're on a rollercoaster!~ ^_^

39) Wear a trenchcoat and a fedora as you get on the elevtor. When someone else gets on, slowly edge closer to them, before whispering, "Has the chicken flown the coop?" 

40. Sit on the ground in front of the door in a meditating position. You get bonus points if u make the stupid humming noise as well.

41. slouch in a corner like your asleep and then when someone bends down to see if your ok, jump up and scream BOO! Also works extremley well if someone is carrying coffee...:) 

42.When someone pressed a button for their floor scream and go " OMGZ!!!  It freakin changed colors!  Lookit! " Then shove their face into the buttons.

43.Take a few buckets of paint and a paintbrush and start acting like your painting without any paint on the paint brush.  When someone asks what you're doing, say " I'm painting the walls in here invisable! " The make an evil laugh.

44.Take a friend for this one.  When someone come into the elevater, start yelling random things at each other in angry tones and then start a slap flight.  If they try to stop you then both of your yell " *enter name here* use slap! " then start slapping the other person.

45.Go in circle on the elevator yelling at the top of your lungs " Tra La La La La La La!La La La!  LaLALA!!! " I think it would be best when wearing a red coat and holding a picnic bascket.

46.start singing in a really annoying voice a really repetative song like the song that never ends.  If a friend is with you have them say " Oh I love this song! " and start dancing.

47.Each time a person gets into the elevater yell " OMG Wipe your feet n00b! " at them.

Go into an elevator.  when the door opens at a different floor to let someone in, just hit the close button as soon as it starts opening.  Then, go to some other floors and do the same thing.