Um, Uh, Huh? Are These Words Clues To Understanding Human Language?

Um, Uh, Huh? Are These Words Clues To Understanding Human Language?
What does it mean when we say "Huh?" or "Um" in conversation? Barbara J. King explores a new book looking at the topic, How We Talk.

Tiny filler words in human rapid-fire conversation hold the key to understanding how language is unique, according to a new book. But anthropologist Barbara J. King raises some questions.

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