Nearly everyone is aware that today Benjamin Netanyahu gave a speech before a joint session of the United States Congress as well as the controversial manner in which he was invited. If you watched the speech (the full video is below), you may have noticed that for a large percentage of the time, the Israeli Prime Minister spoke with his mouth in an asymmetrical configuration - biased to his right. A momentary asymmetrical mouth while speaking has a modestly long list of nonverbal possibilities (depending on the other body language with which it is clustered).
However when we see such asymmetry for longer durations - as Mr. Netanyahu exemplified today - it has a different set of causes. These are:
1. A Medical or Anatomical cause
2. Idiosyncratic to the individual (habit or tic)
3. Insincerity or deception
4. A manifestation of Bravado (Nonverbal Swagger)
Do you know how to differentiate between these four causes? Which of these were applicable to Benjamin Netanyahu today?
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