A smile on a child’s face and a smile on an old person. Look closer the eyes bring all the contrast.
A face of a thinker and a soul that is thought less. The eyes will show you the contrast.
An angry person hiding his frustration and a jolly fellow eager to meet his friends to share a good news. Again the eyes would let you on the whole contrast.
People with compassion and people too busy to care. One feeling sad the other just does not care. Their bodies might be still but their eyes will be in contrast.
The word contrast beings an image of an eye and only eyes can see the contrast in anything. Ironically they also show contrast. One just needs to pay attention it is all right in front “of” their eyes and actually “in” their eyes.