Most Helpful Guy
What looks good depends on the girl. A good tactic is to look up a celebrity who looks like you, and mimic her. I'm a Caucasian guy and I adore cute white girls with dark brown or black hair that goes down past shoulders, preferably to the middle or the upper back.
Hair style... again, depends on the girl, and your face shape. No matter what girl though, guys love a cute, happy smile. Not a smile like 'smile for the camera' and smile like someone just told a funny joke or you saw something humorous.