Does Any One Have Any Party Ideas?!?!?!?!?

immmm haveing a pool party like with 12 people aand not sure wat else to keep the people occupied... lol annnyyy ideas????? the party is liike 4hrs longg soo yeaaaa.... im goin have basketball volleyball or badminton during it.... so wat would u want to do if u were invited A. basketball B. volleyball or C.badminton