Research Dr. Paul Ekman – scientist who studied micro-expressions and was the inspiration for the show *Lie To Me* starring Tim Roth.
Amazing work on recognising human emotion through facial muscle movements that last less than 1/20th of a second. His book *Telling Lies* is pretty interesting and became required reading for US government interrogators, but his other book *Emotions Revealed* is a how-to on doing it yourself and recognising emotions and intent in others.
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