smell really good, don't flirt with other girls until you know the ones you want have noticed you.. and try to jst be "unknown" busy and happy sorta like that guy who makes the best out of everythign cause he's just happy with himself? you know. "confident" ?
I know for me, if you act like you don't notice me, I'll be going crazy. Even if I didn't notice you at first, if you're confident and act casually towards me (no flirting, nothing) and I KNOW you're single, I'll go absolutely nuts. If a guy is confident (not arrogant) and is just chill, I'll definitely be attracted to him.
Hey buddy, to attract girls you need at least 1 of 3 things, 1) amazing looks, 2) a huge wallet, or 3) a good tongue; a combination of the above works more better. Assuming that we're all average Joe's, conversing is the best way to get girls attracted to you. After all, of the 3 thing the tongue part can be bettered the most easily.