I try to verify stuff. ; )
http://www.csmonitor.com/USA/DC-Decoder/Decoder-Buzz/2014/0924/Obama-coffee-cup-salute-Big-deal-or-so-what
For instance, there was the time President George W. Bush kind of saluted with Barney, his dog, while departing Air Force One. In terms of physical dignity, it makes Obama look like Gen. Douglas MacArthur.
President Bush salutes Peter Grier: