How can I relax before kissing her?

that sounds really good but she just never seems interested in it. There are times where I could do that but I get nervous that she might reject and I would hate for her to feel uncomfortable. I guess I'll just have to work it out. Any advice on what I should do? I take it that your last comment was while sitting down?

yes, sitting down in a comfortable spot you think she would like. thats why you start with a gentle little kiss say on the cheek. let her know what you want to do first and she may or may not respond to it.
and mayb if she never seems interested in it she may not be ready. she give her a little time, mayb talk to her about it. see her point of view. let her know you want the best for her you want to know what she thinks.
anything else?