Question

People who are adept at reading others' emotions will often unconsciously _____ the body posture and facial expressions of people with whom they are interacting or watching.

Answer 1

the answer to this question is mimic
by mimicing the body posture and facial expressions, we can make the other people felt similarty towards us.
This will make that person more incline to opened up their emotion and make us appear more trustworthy compared to other people

Answer 2

mirror Mirroring the other persons posture and facial expressions is an evolved behavior to show empathy with the person they are interacting with.