well, sir, there are two real options, the first and most obvious one is: swallow your pride and just tell her, cause otherwise nothing is going to happen. If you just cant do this, you really just can't, then I guess you just have to depend on her making a move, which means you have to just be you, and hope that it's irresistable.
Ladies, i think this one is more suited for you to answer, so help Pat out here!