I Need The BEST Sleepover Games You`ve Got

I`m turning 12 on my b-day, I`m doing a sleepover the 27th, and need some really fun games! if anyone knows how to play "What If", tell me how, I`m not clear on the directions!!!!
I need one outdoor game, and a couple indoor!!!!
PLEASE HELP ME!!!!!!!!
Posted by April; updated 04/03/07