When you’re talking to someone, if you REALLY want to know what they think, watch their body language. And if you want to be their friend, MIMIC it.

The benefits of body-language mimicry have been confirmed by numerous psychological studies. Gentle mimicry can act as a kind of "social glue" in human relationships. It fosters rapport and trust. It signals cohesion. Two people who like each other will often unconsciously mirror each other’s mannerisms in subtle ways–leaning forward in close synchrony, for example–and that strengthens their bond.
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