What games should I have at a sleepover/party?

I am having my first sleepover/party kind of thing with three of my friends. I have never hosted anything before, and I don't know what I should do to entertain them. The ages of my friends and I are 14, 15, 15, and 16. I am planning on watching a movie, decorating T-Shirts with glittery stuff, and possibly cooking. I don't know what else I should do. Any suggestions? Thanks so much!