I hear a lot about this eye contact stuff. Like you look at a girl, shes catches you looking, then she either smiles and looks away, or she looks away, then looks back in a few seconds to see if you're still looking. These are apparently giant signs saying COME TALK TO ME.

I dont get any of these? I've been walking more confidently recently and focusing on looking at girls in the eyes and holding eye contact. But 90% of the girls I look at dont even look back at me, they just keep gazing forward and they're gone, and the other 10% just glace and look away, nothing more.