I want to make a move on this girl but have no idea if she’s just being friendly or willing to go the extra mile?

Any tips on how to check if a girl is down? I basically want to see if she wants to fuck. But I don’t know if she is just really friendly. Any texts or something I could ask in person that could show without overstepping? We both are too busy for relationships, but I think no ties friends with benefits is a thing in our field.

I want to make a move on this girl but have no idea if she’s just being friendly or willing to go the extra mile?
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