He will copy some of my body language, facial expressions, and a few of the words that I say every time we're together. If I scratch my eye with one finger, he scratches his eye with his finger. If I furrow my eyebrows, he will furrow his. If I use a word or phrase within a sentence, he will use that same phrase right after I say it somehow while he's talking to me. I also do this thing where I tap my foot while I'm sitting with my legs crossed and then he does the same thing, in the same position, right after me.