Studies of nonverbal communication across cultures reveal that A. smiles and laughter are universal signals of positive emotions. B. sour expressions convey displeasure in some cultures and pleasure in others. C. a direct gaze is considered appropriate in most cultures. D. classes usually start and end on time in most cultures.

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Nonverbal communication involves using features to express ideas and thoughts. Similarity in all cultures are cultural universals. smiles and laughter are universal.

Universality of nonverbal communication

Studies of nonverbal communication across cultures reveal that smiles and laughter are universal signals of positive emotions.

Therefore, smiles and laughter are universal signals of positive emotions.

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