Seriously need ideas for camping! We're really excited but have no idea what we're...

[Mee :)]

...going to do...? Me and 8 of my friends are going camping for my friends birthday in about a week for one night just in any old field we can find. We're going to have music and food and probably some drink and stuff but we probably won't be able to have a fire because of people being able to see.. We were thinking along the lines of 'would you rather' and strip poker if we can persuade my friends boyfriend but any other suggestions? We're all 15 so we're kinda a bit restricted in some ways... Thanks x