One of the rules of the road is that if you want to create the sense of silence, it frequently has more pungency if you include the tiniest of sounds. By manipulating what you hear and how you hear it and what other things you don't hear, you can not only help tell the story, you can help the audience get into the mind of the character.

Blinking is some way of tabulating - a kind of carriage return, click, or save to disk - that helps the process of 'Okay, now change the subject.' Every time you move your eyes, there's an interruption in the visual field - you go momentarily blind when your eyeballs are moving.

I believe that one of the secret engines that allows cinema to work, and have the marvelous power over us that it does, is the fact that for thousands of years we have spent eight hours every night in a 'cinematic' dream-state, and so are familiar with this version of reality.

Walter Murch Quotes