the eavesdropping detail is the most unsettling thing in any of the previews
npcs notice if you stand near their conversation too long and they confront you about it
think about what that means for how you move through the world. you cannot just stand somewhere and absorb. being present is an act that other people register. in every previous gta you were a camera with a gun and the world happened at you
this is the first one where standing still is something you can be caught doing