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Fascinating. The way you describe navigating the world based on people's expressions is similar to how Joe Navarro described his experience. He immigrated to America when a youth and knew no English at the time, forcing him to rely on reading body language to understand what was going on. He went on to be an FBI interrogator and used the skills he developed in reading body language in evaluating the truthfulness of those he questioned.

Navarro wrote a book called "What Every Body is Saying".[0] In it he identifies a number of universal body language patterns and sets out guides for interpreting what they mean based on context.

[0] http://www.amazon.com/What-Every-BODY-Saying-Speed-Reading/d...

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