To attempt this would be like seeing without eyes or directing the gaze of knowledge behind one's own eye. Modern science can acknowledge no other than this epistemological stand-point.
Crowds are the most difficult thing for me these days because I have to walk with my head down and my eyes averted. There's still that part of me that wants to hold my head up, make eye contact and smile.
In Hitchcock's eyes the movement was dramatic, not the acting. When he wanted the audience to be moved, he moved the camera. He was a subtle human being, and he was also the best director I have ever worked with.