on the 4th date? when you start investing more money on your dates, talk with her about more serious stuff about yourself...?
Most Helpful Guy
Yes about talking about serious stuff but no about investing more money on dates.
Actually - I really like this one good trick, when you can *really* tell whether the girl is or is not girlfriend/relationship material.
First take her somewhere nice, doesn't exactly need to be 5-star restaurant but still something nice and kinda costly.
...and on the second date take her to Burger King or McDonalds! If she's pissed & running away - then let her, as all what she was looking for is what's in your pants and that's your wallet!
...if she enjoys it same good as the previous date - keep her, as she's wanting to be with you for you not for your money.