Why do chicks look towards the ground when I pass them?

Agree with the best answer. But also if you have a habit of making direct eye contact with people, it may be that they're trying not to reciprocate and indicate they're interested. Chances are a girl isn't going to start flirting with a guy she's just walking past in the street, and/or doesn't necessarily want him to hit on her and start thinking she's interested when she isn't, or she's just being friendly. I definitely do that lol - I always try not to make eye contact with any guy I pass in the street, because whenever I do, they almost always come up to me with a string of questions ending in 'where's your boyfriend?' or at least make a pointless remark. Sometimes they're irritating and sometimes they're decent guys, but in all cases, I'm not looking. So I avoid, um, looking. Lol =P

People--not just women will look down when they are simply feeling self-conscious. Once a person passes a certain range of proximity they sometimes get uncomfortable with making eye contact with a person.

The next time you're out walking, try noticing how many men as well as women look at the ground before passing you. You'll probably see that it's about 50/50.

It probably has nothing to do with how you look. And anyway, how would we know why they are looking away from you if we have no idea what you look like? :P

If you weren't attractive at all, girls likely wouldn't look at you *at all*. So chill out and don't think about whether or not girls are noticing you. It's when you stop noticing them that they'll start noticing you.