Laughter, sighs and screams reveal unwritten social rules in everyday life

Alongside words, humans have a treasure trove of nonverbal tools to help express themselves. We chuckle, sigh and gasp to communicate our feelings without uttering a word. What has amazed researchers for ages is how we rarely stop to think about how we know which sound belongs in which situation. Could unwritten social rules guide these everyday nonverbal sounds?

Read it at Phys.org ↗

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