That the scientists in the experiment. 130 the volunteers were asked to lay out your photos in descending order. In the beginning of the list were supposed to be pictures of people similar to himself.
After that, subjects were photographed and recorded with their participation in the video. All that scientists have shown to strangers and asked them to show on the pictures where the person looks the same as in life.
The surprise was not the limit, in most cases, the public opinion and the man himself was different. Turns out, people are unable to objectively perceive and evaluate their own appearance.