How Facial Expressions Help Robots Communicate with Us
A wrinkled nose, raised eyebrows, a frowning mouth—all can say a lot without uttering a single word. Facial expressions are the closest thing humans have to a universal language, and it could change our relationship with androids and other human-like robots.
John Sparks looks at how Ugandans tell each other how they voted or who they support....using hand gestures.
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