What should the guy do during a movie date?

I'm taking this girl out and I've never done a date at the movies. I'm paying and letting her pick the movie if she wants because I'm nice.

This will be our first date together.

Basically what should or would a guy do during the date.

Pretty much I don't want to put my arm around her and she flips. That's one thing.

And would dinner before or after the movie be appropriate. Would it matter where?
What should the guy do during a movie date?
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