Thomas:
Your nose.  Whether its freckles, its shape, whatever, he constantly says its cute (but in an annoying way) and it BUGS YOU.

Newt:
He doesn't tease you. He's too much of a sweetheart.

Minho:
How slow you are. He finds it hilarious that he can run faster than you.

Gally:
Your height. But then, he's taller than everybody...

LJ x