Is the human gaze a physical force?

Is the human gaze a physical force? It sure feels like it sometimes. Princeton University researchers scanned subjects' brains to gain insight into why we subconsciously interpret "other people's visual attention as an invisible, force-carrying beam projecting from the eyes." This isn't about the paranormal investigations into whether you can "feel" when someone is staring at you from behind, but rather how experiencing gaze as a physical thing is a cognitive shortcut that helps us quickly interpret social meaning. — Read the rest