Gossip session

You can collect exciting and spicy details on the guests invited from the couple.  (To avoid unpleasant events, make certain that visitors would not get hurt if you go public about them) these can be offensive or just enlightening based on how cool your players are. Now frame a question around this information.  

Promising ones - Name Jane's Doberman squeezer?  Do you know where David had his first hard liquor?  Name the first gift the guy got for the girl?  Guess the trick Amy is capable of doing with her tongue?  Name of the winner of a neighborhood baking competition?   

Take cards and pen down these questions each on a card.  Upon arrival, hand each visitor a card.  Give them 10 minutes to get around, talk to people, and try finding the answer to the question in their card.  When enough time has elapsed spinning rumors, each one has to read what fact they found out.