December 16, 2013
Privacy is a form of power. Humans are always highly aware who is observing them at any given time and place, and always tailor their behavior to that audience.
And they generally work to make sure that their behavior does not reveal things that might put them at a disadvantage. To really gain new insight or leverage over another person, you have to watch them when they don’t know they’re being watched so that their guard is down.
So how does a watcher “catch” a subject unawares? It seems to me the possibilities break down into two broad categories: