Men are so visual, they see a woman who appeals to them physically, and it will trigger the romantic love system faster.

Men couldn't care less if your strands are perfectly styled and neat. In fact, he might like you more with some wildness or bedhead, since it shows you're carefree and relaxed.

Women like signs of money and education - things that indicate that not only is this guy going to have some resources, but he's also willing to share them.

Overdone lipstick is a deterrent to men. It rubs off easily onto their skin and the edges of their shirts, so it discourages them from kissing, touching, and coming closer to you, which is what they really want to do!

Kissing is not just kissing. It is a major escalation or de-escalation point in a powerful process of mate choice.

Men have a psychological need to show off their courage and strength. When he sees you talking to another guy, that instinct kicks in and he jumps to protect you and prove he's worthy of your love.

Women, it turns out, are built to lead - particularly in the modern world.