“One study showed that men are more attracted to responsive women, and women who were kind and warm right off the bat. That doesn't mean being over-the-top eager—you don't have to laugh at his jokes if they're not funny—but it's definitely OK to respond to that text in a timely manner, or tell him how much fun you're having. Being kind is definitely a turn on, so forget what you’ve been told about playing it ice-cold.”