While the World waits to see how the U.S. will retaliate for Syria's use of chemical weapons - others speculate. In the above video, Christiane Amanpour interviews Bashar Al'Afari - the Syrian Ambassador to the U.N.
Such mouth asymmetry is highly significant for insincerity. Another emotion that should come to mind when a person speaks out of one side of their mouth is contempt - which Mr. Al'Afari also displays extensively throughout this (and other) interviews.
In this image, the upward movement of his right upper lip, right "mustache area" (even if there is no mustache present) and right nostril dilation/flaring. It look a bit like mild snarl. This particular example of facial expression signifies contempt and is captured during a moment when Al'Afari is denying the Syrian government's use of chemical weapons.
While some people constantly speak out of one side of their mouth, it is unusual to relatively rare. When a person does so - with or without the additional presence of contempt - one possibility that should be strongly considered is that they are in that moment insincere. If this display is chronic then it becomes a sign of their over-all personality.
There are other emotions that can be signaled with the short-term use of asymmetrical mouth speaking. Can you name some?
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