Hi! I'm Non Juan - I give insights to guys on why the things they're doing to try and get women... are actually making them LOSE them instead!
In your case, she may actually BE interested, but making her be the decision-maker in when you hang out (i.e. giving her an open-ended "whenever YOU want to hang out" comment) actually makes your chances of getting together with her DECREASE.
Why?
(a) By asking her to make the decision, you're practically giving her the pants to wear in the relationship! No, you're not in a serious relationship with her, but this is how it starts - all those whipped husbands you hear about started the same way!
(b) You haven't given her any idea of what you'll do if she DOES pick a day. She'll be all like, "okay, let's go out Tuesday," and you'll be like, "Great!..." followed by "...so, what do you want to do?" And she'll be thinking: "Oh great, first I had to pick the day, NOW I have to pick the activity too?!? Can't this guy make a decision??"
My suggestion? Find something you'd like to do, then ask her if she wants to go. If yes, hooray! If not, find someone else. Pretty simple stuff there, guy!
Oh yeah - for more of these wonderful tips, click on the link in my signature!
-Non Juan