Body language is a great way to tell if they're into you. Lets begin by looking at some of the things women do that show they're interested during the conversation:

Playing with and/or twirling hair (this is a tough one and can be confused with a simple case of OCD)

Raising their shoulders straight up and leaning towards you

Hands are open with her palms facing up and outwards

Lots of giggling

You know she's interterested... now what?

It's time to go in for a kiss. Since she's in to you, there will be many opportunities throughout the night to make your move. If you wait until the last minute and hesitate (at the door or end of the date), you pretty much lost your chance. So be on the safe side and try to do it about midway through the date.

What if you're not sure?

Just go for it! What's the worst that can happen... they say no? You have everything to gain and nothing to lose; you'll probably never see them again anyway.

Here are three different approaches to the goodnight kiss:

Silent: Making eye contact and then leaning in about 90% of the way

Polite: Asking them if it's alright to give them a kiss

Brave: Telling them that they have nice lips and asking if you could kiss them

What happens if you chicken out?

Nothing. Opportunities come and go... it really comes down to the person and how they choose to handle the situation. Some people can care less, while others take it harder. But the worst is when you regret not going in for the kiss when you know you should have. It happens to us all... we meet someone we really hit it off with or maybe a friend we always had the biggest crush on but never the nerve to let them know. Before you know it they're gone; it's like clockwork, they either meet someone or move across the country. And in the end all you're left with are those two dreaded words, what if?