Is it a good sign if he mirrors my choice of words?

Anonymous
I have read that mirroring body language is a sign that someone likes you. I have noticed that this guy I've been seeing for a while mirrors my choice of words. There a few words that I always use and he has started to use them as well which he did not before. I think it's cute becaue he stole it from me so I'm just wondering if that is the same as mirroring body language but with words and is it a good thing?
Is it a good sign if he mirrors my choice of words?
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