She doesn't seem to ask too many questions to get to know me but i know so much of he

I posted another post for advice, any advice on that one would be appreciated but here is another question.

I've been hanging out with this girl I recently met, background of whole thing is to long to type, but I was just curious what does it mean when we hang out she seems very open to me and it seems like I know alot about her. But it seems she doesn't ask many questions about me, does that mean shes not interested? I think it could have to do with the fact that im predictable however. Also when we hang out we are always laughing, smiling, never awkward silences but she always seems to keep looking at the ground then back up at me what does this mean also?

Any answers are greatly appreciated, thanks.