Over the last century, advances in technology have massively expanded our choice of ways to connect to each other. Nevertheless, our original means of communicatingtalking face to facepersists as the most immediate, natural, and universal means we have of communicating. Conversing face to face we have at our disposal not only the full richness of our spoken language, but also a nonverbal vocabulary that includes gestures, shifts of gaze, and facial expressions. When we need to convey our innermost feelings, explore a sensitive topic, influence a key decision, or simply make others laugh, this is usually the channel we…
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