How do i get the girls interested?

I am averagely shy at school. I am not in the really popular group but I don't really have a thing for anyone in it. I am a nice guy in all respects but not very talkative around girls. I never seem to smile enough around them ( I feel sort of awkward...

and I don't want to feel that way). I'm not one to touch girls all the time though I wouldn't mind if it was well received. I have a decent sense of style and stand out very slightly. I seem less conscious than other people to fit in. I wear a purple sweater sometimes, pop my collar if it doesn't look prepy and stuff like that. People (guys) have commented on how well I dress as well as my perfect accent which is pretty English as I lived there for the first part of my life. I am pretty athletic, toned but not hulky and tall (5'11). Girls have never really seemed interested in me in that way but all of the guys that I know think that I have a wicked sense of humor (the English wit and charm lol). How should I conduct myself and look at school if I want a girlfriend but don't really have my eyes on anyone in particular (it would be nice if they started to show some interest in me)? I probably need to get myself out there more. I've also never really felt the desire to have a girlfriend until now. I'm really good at downhill biking, it's my passion but that's probably hard to use to my advantage.
Girls help please, I'm in grade 11. Thanks so much, means a lot.

girls can smell confidence
gain some confidence 1st then work on the other parts later