Dude, relax. It's not a boy-girl thing; it's a matter of time. Maybe you joined during a high-pressure period, like I did. Being a girl, I, too, didn't get replies to my "Hi" emails, but it didn't stop me from exploring the site, replying, or asking questions. You need to interact a lot to get to know people and to establish expectations.
Start here; contribute as much as you can, whether it's a little or a lot. It doesn't matter; what counts are your efforts and interests. Kick up your spirits.
Gayathri