Body language experts say that the opening and closing moves in Trump's handshake are very telling.

"I guess on the scale from 0 to 10, with ten being the best, I would say the meeting was a 12," Trump said. "I think it was a 12."

Watch as Donald Trump and Xi Jingping shake hands for 27 seconds before “amazing” talks between the two leaders. The pair met in Busan, South Korea on Thursday (30 October),…