Non-Verbal Communication and Body Language: What clues indicate whether someone's smile is natural or forced? - Quora
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People who have wrinkles around their eyes when they smile or frown are perceived as more sincere | Express Digest
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How a Smile Can Make a Difference: Enhancing the Persuasive Appeal Of Celebrity Endorsers | the Journal of Advertising Research
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PDF] Differential Reliance on the Duchenne Marker During Smile Evaluations and Person Judgments | Semantic Scholar
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A) Examples of the three smile types in the Smile Picture Set. From... | Download Scientific Diagram
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How a Smile Can Make a Difference: Enhancing the Persuasive Appeal Of Celebrity Endorsers | the Journal of Advertising Research
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The use of the Duchenne marker and symmetry of the expression in the judgment of smiles in schizophrenia | Semantic Scholar
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PPMD Awards $148,000 in Grants to Improve Cardiac Function in Duchenne - Parent Project Muscular Dystrophy
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The use of the Duchenne marker and symmetry of the expression in the judgment of smiles in schizophrenia - ScienceDirect
Observers perceive the Duchenne marker as signaling only intensity for sad expressions, not genuine emotion - UCL Discovery
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References in Esthetic evaluation of dynamic smiles with attention to facial muscle activity - American Journal of Orthodontics and Dentofacial Orthopedics
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