Don't hit a woman up just to get her attention, and then drift off once she replies. She responded, so she wants to talk, don't annoy her by going AWOL after the initial pleasantries. If you were wondering whether or not she has time for that, rest assured, she does not. A good way to circumvent this issue is by using your phone to call her. Smartphones can be used to do more than text and browse, you know.