- There is lot of dating advice out that teaches you how to talk to a girl on the phone, though a lot of it is just plain bad advice. Some suggests waiting for two or three days before making the first call. Sure, this can make you appear like a busy guy but then you also risk that another guy will beat you to her. Remember, guys hit on girls all the time. Also, if you got her number in the bar, she might have been a bit drunk and she might not remember you after three days (realistically, if she's a cute girl, she probably talked to five to ten guys that night).