How do I get funds while in a pool

[katyperry]

I'm a total noob so please help!
I have registered at slush pool. I have downloaded guiminer, put my login and password given from the site. Now Im mining at 106.x Mhash/s with my single GTX 680.

The question is: How do I get paid? I couldnt find a single FAQ answering this. I suppose I have to give them my wallet ID but I dont know when nor where to find that ID.