I invented it a few minutes ago.
Here are the ruels:
You take an scene and can switch the place with an character and say the sentence you would have said in that situation and can do only ONE thing different then the character. Then you choose the next scene for the next player and it goes on and on :)

I start:
Scene: 3x10 The Delena Kiss
The peron i switch with myself: Elena
The sentence i would say: I love you Damon!
The thing i would do different: I would hold on Damon and go in the bedroom ;)

The next scene: 2x21 Klaus wants to kill Jenna