I don't know what U.S. President Barack Obama and Vice President Joe Biden heard and/or saw the moment just prior to this photo, but I can tell you with absolute certainty that neither man liked it. Unlike the single-eye rub (see: Negotiation Body Language Secret # 199: When a Lie is Told, Heard or Visualized ... by Vladimir's Eye), when we rub both of our eyes simultaneously, it's as if we are telling our psyches, "I wish I never saw that", or "I can't believe he did that", etc. We are trying to wipe it from our minds. People will also display this body language tell when recalling a past event in the "mind's eye" or even when visualizing a potential future (negative) event. Incredibly, those who are born blind will even perform this nonverbal maneuver when they hear or recall something negative. It's a highly accurate and very reliable signal. If you see it displayed - never ignore or discount it.