How to feel less nervous when hanging out with a guy?

Anonymous
I'm 18, not 35. Anyways, honestly, I don't know why I'm so nervous. I've been talking to this older guy for the past two months. He wants to be in a relationship, but I don't think I'm ready. We've hanged out about two times. I really enjoyed our second hang-out because we talked in the car about things for like two hours. So we're hanging out today, and he's going to take me out to McDonald's. Haven't seen him since December by the way. Lol I'm just worried what he's gonna think when I eat or how I look. This is my first time like actually hanging out with a guy.
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This is my first time like actually hanging out with a guy in a while*
How to feel less nervous when hanging out with a guy?
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