We all know the expression "poker face" because the face is where we expect to find meaningful information. But what if poker players are looking in the wrong place?
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Have you noticed that when you smile at someone, especially if you catch them off-guard, that they smile back? OK, not everyone smiles back! Or do they?
A smile and a frown mean the same thing everywhere—or so say many anthropologists and evolutionary psychologists, who for more than a cent...
Michelle Obama does not have much of a poker face. In fact, her facial expression has a tendency to reveal exactly what she's thinking.
Earlier in th...
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