1 : Check your breath: brush your teeth, chew gum, and avoid strong-smelling foods right before you're planning to kiss someone
2 : Also, take a shower, wash your hair, and smell nice. Basically—don't be a gross slob. Hygiene is sexy.
3 : Prep your lips. If they're chapped or dry, use some balm to get them kissable.
4 : While alone with her before you kiss, it might be good to compliment her sincerely — tell her something that you love about her. Don't do this just to do it though. Mean what you say. This helps create the right mood and will put the focus on her, which is where it should be.
5 : Start making physical contact before you kiss — lightly touch her shoulder or arm. Holding hands is also great and especially appropriate if she's your girlfriend.
6 : When the moment for the kiss has come, shut up and make eye contact with her. Let the tension of the moment build a little.
7 : Make sure she wants to kiss you. If at any point she seems uncomfortable with you touching her or starts backing away from you, then you should stop.
8 : If things look good, start making your approach. Enter her personal space slowly, but purposefully.
9 : Go in for the kiss with lips slightly parted like you're about to say something. Don't pucker up like grandma.