Measuring Happiness » Types of smile

Real smiles, or 'Duchenne' smiles, involve the eyes.  See the crow's feet on the guy's eyes, indicating a real smile.  The girl is only smiling with the lips - no crow's feet, not a real smile.

Real smiles, or ‘Duchenne’ smiles, involve the eyes. See the crow’s feet on the guy’s eyes, indicating a real smile. The girl is only smiling with the lips – no crow’s feet, not a real smile.


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