It kind of depends what kind of girl you are- tomboyish or the girly type. If you are a tomboy sort of gal some sort of loose baggy tee shirt and skinny jeans and some converse would be very cute. I go for that look pretty often. If youre a kind of girly girl you could wear some kind of tank top and a frilly skirt or even short shorts and a crop top with some flip flops. This would be especially nice for warm weather.

I would wear a knee high skirt with leggings so you feel comfortable sitting in any position you like and a tank top with high tops or even sneakers - kind of a sportsy - cute look.