Which the machine won't recognise as a person (and will discard). It would take a human to track you but that's old school. Of course, that's only until gait recognition takes over from face recognition.
haha ... I totally understand that GP didn't mean it this way. But there is something really funny about that statement, as if walking around with a bedazzled face won't make it easy to just say, "the person with the bedazzled face" to describe a very specific person :P