'It's the ASEAN handshake: right hand over left'.
In another unusual and candid moment from the ASEAN summit, Duterte - who recently said he stabbed someone to death when he was a teenage because of "a look" - sang a Filipino love song "on the orders of Donald Trump" shortly before the summit.
'Give us your brightest smile, ' a master of ceremonies intoned as camera flashes popped.
Vietnam's President Tran Dai Quang, President Trump, Philippines' President Rodrigo Duterte and Australia's Prime Minister Malcolm Turnbull cross their arms to shake hands.
"President Trump expressed his condolences for the tragic loss of life in Marawi City at the hands of ISIS-affiliated terrorists, and congratulated the Armed Forces of the Philippines for its success in liberating Marawi", according to a joint statement released after the bilateral meeting between Trump and Philippine President Rodrigo Duterte on Monday, November 13.
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The weapon can not be integrated into North Atlantic Treaty Organisation defences. The US-led coalition says it does not discuss the location of its forces.
Instead of standing on risers, heads of state lined up for a traditional cross-body handshake, which appeared to baffle Trump until he figured out what to do with his arms. Secretary of State Rex Tillerson would attend the plenary session in his place, a senior White House official said.
In Brussels in May, Trump and French President Emmanuel Macron engaged in a jaw-clenching, face-tightening, knuckle-whitening handshake for six full seconds, with each man trying to claim the alpha status.
Russia Prime Minister Dmitry Medvedev kept it simple and did not cross his arms for the handshake. During the meeting, the two leaders carried out a "broad review" of the strategic landscape in Asia, signalling deeper cooperation by the two countries in dealing with sensitive security issues confronting the region.
President Donald Trump participated Monday in the opening ceremonies of a 10-nation gathering in the Philippines, the final stop in his five-country Asia tour.
"I get along very well with Angela", he said.