I've been working a lot on eye contact and have wondered this. If your checking out a girl and she catches you looking at her and you two make eye contact, you should hold it right? My guess is just look at her and if your still making eye contact for 2-3 seconds you make a smile (Unless she does first).

Does this sound right? Most of the time I wait to make eye contact until the girl looks at me first, then I catch her at it. But i get a little nervous if it's the other way around. Any tips?