How do you kiss someone?

Well I've been dating this really great guy for about a month nd we're planning to go on a date Saturday..it'll be our second date, but when we talking he brought up the subject of kissing..he has already had his first kiss nd he asked me if I had, so I was honest nd said no..,but if he does plan to kiss me, what exactly do I do? I don't know how to kiss..someone help?