Today during a lecture on how to teach molecular evolution, one of the speakers showed a video from the Creature Comforts series. The series puts a face, so to say, to people who have been interviewed. Some are ordinary people (from America or England), and some are popular figures, such as politicians. They're really quite funny, and exemplify how important body language is.
I went to look up more about this series and came across this move about the US presidential candidates in 2008. It excels in its effort to pick up certain characteristics in a person's voice quality and manner of speaking and portray them visually: