I was going to do the same thing until I decided it was too hot so I may have some ideas you'd like to use. I'd recommend having a section with games like twister, a deck of cards, checkers, taboo...and other games that only require a few people. I think the main thing people will want to do is talk to one another so that should occupy a bunch of time too. I'd play a lot of music as well. Hope that helped.