What to wear paint balling?

I'm a girl and I'm going to play paintball for the first time tomorrow and I have no idea what to wear! I'm going with a bunch of guys who play all the time and i don't want to look stupider then I already am. I'm not think of anything to really dull the pain to much but just more camouflage. I'm blonde so should I wear like a bandanna or something to cover my hair? I'm think wearing an old pair of jeans and like an old t shirt, is that good?. its going to be around 60/65 degrees tomorrow and i dont want to be to hot but not be to exposed either. Anythign i just be SURE to bring? I need help ASAP. thanks in advance.