Much like the late Kim Jong-il who liked to stare at things (and not unrelated to his son Kim Jon Un clapping at things), our beloved and often incomprehensible mathematician John Nash also likes to look at things. Edit: We realize this is probably not good for any of his lingering paranoia that people are watching him at all times. Apologies to Dr. Nash.
Kudos to the clever Princetonian who came up with this tumblr, as spotting a rare John Nash out in the open is a momentous occasion.
EDIT: They never accepted my submission, “John Nash NOT Looking At Paul Krugman”: