New to dating. Advice appreciated :)

Over the last few years I've been on a couple first dates. Never a real relationship so i just need some general advice. About a month ago I met a really awesome guy who asked me to go out with him sometime. We've been on a few dates and last week he invited me to his birthday where I met a bunch of his friends. It was a lot of fun :) Anyway, up until then we had no contact at all haha but finally we hugged (and good hug haha) so we haven't even kissed. I'd really like to though! lol but I'm terrible at expressing how I feel about people in words, so much less physically. I'm worried though, he may think I'm not as interested as I actually am. How can I start being flirty without being creepy? Can I tell him things like I missed him this week? or is not quite a month and a half of dating too early for that stuff? I don't wanna seem clingy or desperate either haha. So just any advice you guys have for new relationships would be good. Thanks :) and we are 21(him) and 22(me) in case you wanted to know