Have you ever noticed the eyes of an actor or actress when they are portraying a character? The eyes will tell you more about the character than any other part of the body. A good actor will draw you in and make his character believable. The inflections and there’s voice will also make that character believable.
I have always looked at newscasters and how they report the news by watching their eyes in the inflections of their voices. They are highly professional and know what to do and what to say when reporting a story. It is interesting to see someone like Julie Nelson report of a tragic accident with three or four deaths and then turn to Belinda Jensen who has to tell you that a huge storm is coming and do it with a smile. She has to take you out of the funk of accidents with deaths and make you glad that a storm is approaching.