I once thought of doing my World Literature Essay on facial expressions. Below are quotes I collected specifically for this topic.

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Govinda - as pale as a dried banana.

Siddartha - laughed in such a way that his voice expressed a shade of sorrow and a shade of mockery.

The old man (eldest Samana) became silent, his eyes glazed.

Your mouth is like a freshly cut fig, Kamala

His face is still more clever and intellectual than other people's, but he rarely laughed, and gradually his face assumed the expressions which are so often found among rich people - the expressions of discontent, of sickliness, of displeasure, of idleness, or lovelessness.

Weariness was written on Kamala's face.

Good-natured wrinkles

-From 'Siddartha' by Hermann Hesse

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Darting black eyes both insincere and self-satisfied in expression

The expression on his face was one of spiteful mistrust and chronic ill-concealed anger.

Sad black eyes of the children.

Expressionless black eyes like the empty windows of a dark room.

You can tell these Americans of 1929 by their whipped-dog expression and gold teeth.

Large eyes and thin lips; their archaic faces do not stem from the Romans, Greeks, Estrucans, Normans, or anyother invaders who have passed their land, bt recall the most ancient Italic types.

Earthly, immobile, animal-like expression.

-from 'Christ Stopped At Eboli' by Carlos Levi