Do guys like fun girls?

the other day i was with about5 friends. and the guy i like was there, and they all went swimming in the pool and in the spa.. but i din't cause i didn't want to get my hair wet .. and the guy i like called me a party popper. In a nice way :P But the next time should i go in the spa and pool and be fun? 'im 15, hes 17 . :)