Getting to know someone?

It’s been a month that I’ve been talking to this guy and I’m happy when I think about seeing him but nervous and shy when I’m around him. I want to get to know him and ask questions but I’m nervous and I don’t know why. He is older than me but I don’t think age has anything to do with it. How do i just relax and not be in my head too much when I am around him?
Getting to know someone?
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