Circle of Truth
Gather all the guests and have them sit in a circle. Someone calls out a question e.g. "Who here has ever laughed so hard your drink came through your nose?" If you have, then you must get up and move one seat to the right, no matter who is still sitting there. You can get as personal as you want with your questions depending on the guests at your gathering. The first one back to their original seat wins! You may end up with a major pile up and more times than not, your guests may leave knowing almost too much about each other! Have fun!