What I have learned and found to b true over the years is that people reflect their thoughts, attitudes and consciousness in their eyes and face.
U can see a kind face. U can see a hard face. I can see a cruel face. I remember looking into the face of omar kadafi. His face was contorted and very cruel. Look into the face of saints and Masters. U will see bliss..compassion and kindness. Of course there r exceptions. Yet even in an attractive face u can see selfishness while in a spiritual face u may see more depth and concern for others. U can see prejudice. U can see small and very dogmatic beliefs. U can see craziness. And the eyes. The eyes can tell u so much about what is happening in someone's head and heart.