Emotions in Photograpy

Emotions in photography can be shown in several different ways and forms. Most times it's shown by how a person looks in a photo by there facial expression or body language. I think that a good example would be almost any picture from the great depression to show how sad it was back then. Also you could show somebody crying and you would immediatly think that they are upset in some way. I think the most obvious colour to show an emotion is the colour red, it usually displays anger in some way.