Stuff to do on a road trip?

I'm leaving for a 5-6 hour road trip with my best friend on Sunday and we need some ideas of stuff to do in the car! I'm gonna bring my iPod, but I'm not much of a reader... But I'm bringing my Bobbi Brown Beauty Rules book :P But I need other ideas... We're probably gonna text our other friends cause that's just what we do... xD but like other than taking pictuers/videos, listening to music, and reading, what else is there? Idk if we'll sleep but yeah..I need ideas!! haha :)