Well I'm a 28 year old guy and I just thought i'd tell you teen girls what us guys like:

Brown hair (blonde is fine too) no gingers though. ew.
Lots of makeup. (not "too much" just a lot)
Show skin (stomach, boobs, butt)
We like big butts
Small waists
Big boobs (not too big)
We like our girls to be nice and caring
Any height is fine i guess. Just not taller than us. And not like a midget.
Wear tight clothes.
Wear some "costume jewelry"
I hate it when girls have like no eyebrows. ew.
make sure you shave your legs and everywhere else.
shower everyday.
have nice teeth (don't have to be perfect)
be stylish.
have a nice tight vagina (i guess loose will do too, but hey whatever)
be about 15-16 years of age.
smile (not TOO much though)
party. but don't drink.
and us guys like to be teased.
This is coming from me and my friends' point of views.

Good luck!