In studies conducted in Papua New Guinea, Paul Ekman, the world's most renowned researcher on facial expressions, found that even members of the Fore tribe, who were completely disconnected from Western culture, and also known for their unusual cannibalism rituals, (Laughter) attributed smiles to descriptions of situations the same way you and I would.
En un estudi realitzat a Papua Nova Guinea, en Paul Ekman, l'investigador d'expresions facials més conegut del món, va descobrir que els membres de la tribu Fore, que estaven totalment desconectats de la cultura occidental, i coneguts pels seus rituals inusuals de canibalisme, atribueixen somriures per descriure situacions igual que ho fariem nosaltres.