Karen: I know a cool game. Would you like to play?
Avi: Sure!
Karen: So it goes like that: I write a sentence and you continue, then it's my turn etc. 
Avi: I know it. It's fun. Let's play!
Karen: Want to start?
Avi: OK. I'm sitting in the room.
Karen: It's dark and cold outside.
Avi: I'm reading a book. The house is silent.
Karen: Suddenly, I hear a tapping sound.
Avi: Where is it coming from? - I ask myself.
Karen: It's from outside. Is someone knocking on my window?
Avi: No, it's impossible. You could only do that if you climbed on the roof underneath it.
Karen: But the tapping continues....
Avi: Louder and louder...
Karen: I'm going to check it out.
Avi: I'm a bit scared but anyway I approach the window.
Karen: It's so dark outside, I cannot see a thing.
Avi: But the tapping continues...
Karen: It sounds like... OMG!!!
Avi: What the hell is that???
Karen suggests to Avi that they play a story-telling game and they make up they story.