I read an article just now about going in for the kiss with girls. It is similiar to getting numbers in that if you go for it, you will usually get it.

Caveat: This ofcourse is working off the back of a few IOIs otherwise it is quite bold. If you have been flirting with a girl in a club or have had a good date, don't wait for her to close her eyes and start pouting.

This is also a good move if you are on the cusp and want to switch gears. Even if you may have appeared a touch mundane in the chat it reveals a side of you that is animalistic. That is why I usually get close to make it a little over-familiar and then a kiss where the neck meets the back of the jaw. Occasionally followed by a light bight on the neck. If she likes that, makeout city.

If not you banter it off. :)