How To Open Mouth Kiss

how to open mouth kiss
How can you say you do .. kiss!?

if you are alone with a guy, how do you know whether to kiss or open-mouth kissing? language Nott. I think they are both mouth wide open, but it looks nicer. and how do you know that one of the other person is going to do? people say it has its mouth open can be a sign, but not necessarily. to help?! thanks. :)

only thing the lips a little and if it is a peck then no big deal and if more than open to it. but nobody knows what kind of kiss to wait, and if it will be more than they receive at that point after the first peck. its kind of just a kind of intuition of things.