“Eye contact” is not as well-defined a concept as it seems. As a child, I had an idea that true eye contact required a perfect eye-to-eye lock: my right eye looking into the other’s left eye, my left eye looking into their right, and vice versa. This, of course, is impossible; you have to pick one eye, or a point somewhere near the eyes on the face, in order to focus your gaze. The paths might randomly cross, but they don’t meet and stop. When standing near someone at a party, or sitting on opposite sides of a desk, holding eye contact is tricky — not because of the intimacy, but because you have to move your eyes around to take in their whole face. Counterintuitively, the illusion is easier to maintain if the person you’re looking at is farther away.
More… “Ways of Looking”