Looking at this group of faces, I notice how in each one, it is the eyes that most clearly indicate the internal state of the characters. Doubt or dissatisfaction, in the first figure: the eyes look one direction, the twist mouth, lips perhaps pursed the other.
Eyes looking down, eye brow raised suggest a surprise, not altogether pleasant. Eyes looking off in the distance, introspection. Eyes darting to left or right, the person or the situation one is contending with. I follow the direction of the eyes. The woman at the bottom looks to the man to the left who gazes straight ahead. Is she annoyed watching him? Either he’s oblivious or uninterested? It doesn’t take much for me to begin telling myself a story. And most of the time, it begins, and is anchored with the the first shape I draw, which almost invariably is one eye, usually the right eye.