Nonverbal Communication Analysis №3672: Jessica Alba, Swass, Body Language and Emotional Intelligence (VIDEO, PHOTOS)

Last week Jessica Alba was a guest on The Tonight Show with Jimmy Fallon. And although she’s an accomplished actor, when “Jessica is just being Jessica” — she not quite as skilled at suspending our disbelief. The same is true for virtually all actors.

One particularly good example of this phenomenon is Alba’s “smile” — for throughout much of this video segment her smile is insincere.

The lower teeth should not be exposed during a sincere smile (aka Duchenne Smile). There are exceptions to this however — such as when crescendoing to or decrescendoing from sincere laughter (fully expressed sincere laughter typically does display the lower teeth, but NOT during sincere smiles), with a downward directed camera angle, or when the person is tilting their head and neck forward or if the observer is significantly taller. Other than in these scenarios — the bottom teeth should not be exposed with smiles of sincerity.

During this variety of insincere smile (social smile) the corners of the mouth are vectored laterally (toward the sides) rather than being directed primarily upward. This allows the lower teeth to be uncovered.

Another telltale signal of insincerity seen here is Jessica’s jaw jut. During sincere smiles as well in the midst of sincere laughter — the jaw is retracted (pulled inward) — NOT jutting outward as is displayed in these examples.

See also:

Nonverbal Communication Analysis №3671: Trump’s and Pence’s Tweets

Nonverbal Communication Analysis №3669: Jordan Spieth, Bill Murray and the Asymmetrical Smile

Nonverbal Communication Analysis №3639: Donald Trump regarding DNC — “I wanted to hit a couple of those speakers so hard”

Nonverbal Communication Analysis №3577: Tape Face — America’s Got Talent 2016 Auditions

Nonverbal Communication Analysis №3574: Selena Gomez’s Body Language Reaction to Fans in Montreal

Nonverbal Communication Analysis №3523: Jaws — “You’re Going to Need a Bigger Boat”

Nonverbal Communication Analysis №3512: Emilia Clarke, “Me Before You” and Body Language

Nonverbal Communication Analysis №3435: US Sailor captain Apologizes to Iran