How do I get ready for my first [real] kiss?

I'm super nervous about kissing this guy. We've been going out for a while, and we hold hands all the time, which is an amazing feeling, that in itself. But I'm just anxious about this. We don't usually see each other besides at school, so it will probably just be a peck on the lips, because of all the people crammed in the hall and the short amount of time. What are some things that I can do to not avoid being kissed, but be excited about it? (I almost always have great breath, due to minty gum)