Men, how would you describe your perfect kiss?

I have a ton of guy friends, and I have asked this question of some of them, but they never give me a real answer. So, I'll ask the good men of Reddit:

How would you describe your perfect kiss? What does a woman need to do to make it perfect?

(I have a first kiss WITH A NEW GUY coming up soon, I believe, so serious answers please. I really like this guy.)