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 ...

The applause at premieres like “Mission: Impossible” or “The History of Sound” is often timed and reported breathlessly. But there’s more to the story. By Kyle Buchanan For decades, the Palme d’Or was ...