How can I kiss this girl who's used to kissing?

Ok, there's this girl who likes me and I like her. She's kissed guys before, but I've never kissed anyone. I have no idea what so ever. Is there a certain way to do it? A technique that the pro's use. lol I do not know what to do at all. All I know is I'm going to brush my teeth an extra 5 minutes every day just in case. Can somebody help me?