The Definitive Book of Body Language

Mirroring - How We Build Rapport

physically resemble us, or that appear to reflect our attitudes.

To demonstrate the point, here are a few examples:

Do we choose pets that resemble us?

Monkey See, Monkey Do

The next time you attend a social function or go to a place
where people meet and interact, notice the number of people
who have taken the identical gestures and posture of the
person with whom they're talking. Mirroring is the way one