Sabine Lisicki defeated Serena Williams yesterday 6-2, 1-6, 6-4 to reach the quarterfinals. Today at Wimbledon she bested Kaia Kanepi 6-3, 6-3 to reach the semifinals.
Lip biting is often used by the subconscious as a way to suppress an outward display of a significant emotion. Here the German tennis pro bites her bottom lip just prior to "Tears of Joy". The rising star showed this nonverbal several times in this interview. Did you spot them all?
Milliseconds after the interviewer says the word "... smile ...", Sabine first briefly laughs (at 0:40) - and then displays a sincere (Duchenne) smile of joy-happiness (at 0:41). Note her partially closed eyelids, the concave-up dynamic furrow in each lower eyelid and her relaxed forehead muscles. These are all required components of a sincere smile. Also important is the upward vectoring of the cheek muscles (Zygomaticus major) exposing the upper teeth only. It is however possible that the smile is a sincere one and yet no teeth are exposed - when the smile is suppressed. When the smile is a sincere one and teeth are exposed - look for those on top as Sabine shows here.
If the lower teeth are exposed there could be muscle fatigue present (e.g. taking multiple photos and thus multiple posed smiles), a downward view/camera angle - or during the beginning or end stages of a bout of laughter (see below). When these conditions are not present but the bottom teeth are seen (extremely common) - think an insincere smile.
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In this image Ms. Lisicki is laughing (very sincerely) with significant exposure of her lower teeth.
What other classic body language was exampled during this interview? What do these body language signals indicate?
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