What do girls really want to hear?

There are certain things a girl can say to a guy that he'll be an instant sucker for. Examples are if she calls him "master" or makes a huge fuss over him being well endowed (whether it's true or not). No guy can help himself if a girl says these sorts of things. Now that I've revealed the secret to ensnaring guys, what are some equivalent things a guy could say that girls are powerless to resist?