Guys: What does it mean when you kiss a girl's nose?

I was on a date with the guy I like and at the end when he was dropping me off, he was hugging me goodnight and then somehow he ended up leaning his forehead againt mine (not that I'm complaining!) And he pulled back a little and told me I had a cute nose and then leaned in to kiss it. And afterward he kissed my forehead. He kissed me on the lips too haha. It was our first kiss. :)

So guys, what does this mean? I'm curious.
Guys: What does it mean when you kiss a girl's nose?
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