Does looks have a lot to do when a guy approaches a girl?

Somewhat yes. Because we know nothing about you except your looks. But any guy can succeed if he approaches right. And trust me, if you approach a girl like you're trying to get with her, it'll backfire. Girls respond so much friendlier to guys that start talking casually like he's not trying to pick her up. And remember, confidence is everything.

it does. its your first impression.

if you look like you just woke up and approach someone, they might think you don't care about how you look, or that you might be lazy.