Air travel has its own little code of conduct, most of it unwritten and all of it surprisingly emotional. One minute you’re sharing armrests with strangers, and the next you’re judging someone’s snack ...

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 ...

While off-the-cuff remarks from audience members as they leave the theater may not be the most accurate barometer of a film’s worth, the guy who was overheard saying “I don’t like movies that make ...

In a scene toward the end of the 2006 film, "X-Men: The Last Stand," a character claps and sends a shock wave that knocks out an opposing army. Sunny Jung, professor of biological and environmental ...