A glance can both submit and subvert; it can be sharp or shy, scornful or adoring; it can be a near cousin to scrutiny - but it almost always assumes a degree of mutually encoded knowledge. A spark is struck and apprehended; the head turns on it's spinal axis; the shoulders freeze; the eyes are the only busy part of the body, simultaneously receiving and sending out information, so that a glance becomes more than a glance. It is a weapon, a command, or a sigh of acquiescence.