Love isn't the only international language. Go anywhere in the world and you'll recognize a frown, a goofy grin, or a wide-eyed stare. In this hour of To the Best of Our Knowledge, getting a grip on our emotions and reading character in a face. Also, how to detect a lie. And, emotional computers.

Neuroscientist Candace Pert tells Judith Strasser that the emotions are chemically manifested throughout the body and control all of its systems. Pert is affiliated with the Georgetown University Medical Center and is the author of "Molecules of Emotion: Why You Feel the Way You Feel."

Jonathan Cole is a neurophysiologist at the University of Southampton in England, and the author of "About Face." He tells Steve Paulson about his work with people whose ability to read faces is impaired and the serious consequences of this handicap. Also, science writer Deborah Blum tells Jim Fleming why human beings are such universally lousy lie detectors. She says evolution predisposes us to think all faces are honest faces.

In 1872, Charles Darwin (the father of evolution) published "The Expression of Emotions in Men and Animals." Paul Ekman, a psychologist at the Uiversity of California, says Darwin's is still the best book on the subject, which is why he's edited a new edition. Ekman tells Steve Paulson why Darwin was so interested in facial expressions. Also, M.I.T. computer scientist Rosalind Picard tells Jim Fleming that adding emotions to computers will help them perform better, and decrease human frustration. Her book is "Affective Computing."

Distribution dates:

• week of 07/26/98 - hour 2
• week of 06/20/99 - hour 2