To play Truth or Dare you should know some basic rules. The minimum is two players, but I recommend you to have at least 4 players. The more people you have the more fun it'll be. Usually whoever volunteers asks first, unless the group chooses you for tribute, you're screwed. Then I'll make sure Nico di Angelo, Grell Sutcliff, or the Silent Brothers oversee the proper funeral rights. 

Totally kidding. XD Anyways, below is how you play.

One player chooses another and asks Truth or Dare. 

If you pick Truth you have to answer the question in all honesty, know matter what it is.

Chose Dare and you have to do whatever the other person tells you to do. 

There chu go, have fun. (: