As the Head of State and his wife Michelle landed in New York on Tuesday, he was spotted saluting his guards with the same hand he was holding his cup of coffee.
Stepping off the plane in a smart black suit and blue tie, Obama fastens his jacket buttons with his left hand as he holds the coffee in his right.
He then holds the cardboard cup to his head as he passes.
The salute is “the most important of all military courtesies,” says a manual, titled “Customs and Courtesies,” for Marine Corps officer candidates, The Daily Caller reported.
“In general, do not salute when… carrying articles with both hands or being otherwise so occupied as to make saluting impractical,” the manual says.
Mr. Obama did not appear to be carrying anything else in his hands when he made the unusual salute.