You can tell a lot from a picture; even without any words, pictures tell a story.
What is fascinating when looking at pictures of emotion is that the basic emotions of anger, disgust, fear, contempt, happiness, sadness and surprise are shown on the face in exactly the same way regardless of the person’s age, gender or ethnicity.
Thus, when we see images that show these basic emotions, it doesn’t matter where they are from in the world, we can understand how that person is feeling because facial expressions are universal.