Do you intentionally mirror your crush to get her attention?

I know that mirroring (mimicking a person's action) is a sign of flirting. But do you intentionally do it to make your crush feel comfortable around you?

This is how the flirting article puts it - mirror to build rapport.

But its creeping me out already. A flirting guy is always mirroring me. I'm beginning to feel uncomfortable. I do not know if he's aware about it or he does it on purpose.
Do you intentionally mirror your crush to get her attention?
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