I'm 14 nearly turning 15 after a couple of days, so here is what I like to do:
-Bowling
-Ice-cream Parlour/ Fast food restaurant
-Makeovers (doing eachothers makeup and hair, trying on outfits and taking before and after pictures)
-Hearing/ dancing to music's like R&B, Rap and Pop (Preferably Korean or Japanese Pop)
-Gossiping
-Playing Black Jack with cards
-Watching Chick flick or Comedy movies.
-Shopping
Hope this helps and have fun.