get some friends (6 or 7 if u can)... all dress like gng for an important meeting(a tie and a suitcase can be opted)..get into an elevator.. make sure it is empty..all face the wall opposite to the door(instead of the normal facing the door posture).. wait 4 someone to enter.. act normal(try to look serious if u r really good at acting).. check out how your guest stand in the elevator..Fun guaranteed!!!