wear, what your cormfatable with-
dont think about it too much,
everyones first day probably thinking the same.

this is a fucking gay question. just pick a god damn shirt and pants.

It depends what kind of look your going for. If your going for trendy cute look, get a denim skirt with layering but no design. You can get dyed denim but stick to blacks and blues. Get a big T shirt with one shoulder T shirt with no to minimum writing. With the T shirt get colors, bright yellows blues and pinks look good. Wear with flats

If your going for a mature look, Wear capri pants. Not denim because, as amazing as denim is it gives off a silent younger look. Even though I basically ONLY wear denim. Wear a half Tshirt with it, ZERO writing on front. wear with flip flops

If your going for a more teen rebel kind of look, Buy short shorts, but not EXTREMLY short and a tang top with sleeves one inch out from the shoulder. Get from a hip brand like pac sun, vans aero or hollister. Wear with bulky sneakers.