This post is co-authored by Ron Riggio and nonverbal communication expert Alan Crawley. When and why do we clap? We get startled, and we clap. We try to get our dog’s (or our child’s) attention, and ...

It's such a natural reaction to something impressive or joyous that you might never have thought to question it. But why do we show our appreciation, approval, or even happiness by noisily clapping ...

How do you decide when to start clapping after a virtuoso performance? And when do you stop? New research finds the answer lies in what other people around you are doing. The louder the applause — ...

WERTHEIMER: But what makes us clap more for some performances than others? You'd think it's obvious: the better the show, the more applause. Think again. New research at Uppsala University in Sweden ...

And then, suddenly, just when the colors and outlines settle at last to their various duties -- smiling, frivolous duties -- some knob is touched and a torrent of sounds comes to life: voices speaking ...

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The crowd at the city council meeting did not protest when the mayor asked that they refrain from booing or cheering as she invited the public to speak on any topic. But no clapping? “A violation of ...