I'm sure we've all played this game, so we all know the concept.
This is how it'll work!
Just keep posting duck, duck, duck, ect.
But if someone says goose, they can goose the last person to post to do whatever they want!
What do I mean by that?
You can dare them to put something in their signature for X amount of days, you can dare them to do something with their character in a thread, and anything else you can think of!