Thursday night's meeting between President Donald Trump and Chinese President Xi Jinping was said to be very informal.
The two presidents and first ladies met for the first time at Mar-a-Lago to have dinner.
But the two world leaders wrapped up Friday by holding a roundtable with representatives from both countries.
Xi left the Eau Palm Beach Resort just after 10 a.m. in a short motorcade, followed by ambulances, headed to Mar-a-Lago for a 10:30 a.m. meeting with Trump.
The two are said to have gotten straight to business, talking about North Korea and Trump's request for China's help with ending their testing of nuclear weapons.
During that meeting, Trump told the press that potentially bad problems will be going away and that progress has been made.
Trump stated earlier this week that if China wouldn't solve the North Korean nuclear issue, the U.S. would be forced to.
But Trump's advisors said Friday's meeting was more about the presidents of the two superpowers simply getting to know one another.
"I think it's a good start," Trump supporter Karl Lindroos said. "I think they have a lot of differences to work out, and I hope the chemistry between the leaders will work, so they have a base to work on."
Supporters, spectators and a few protesters once again lined up outside the hotel where Xi and his wife stayed overnight.
Chinese first lady Peng Liyuan left moments later, waving out the window to supporters as she passed. Police said a woman was arrested after running into the street, blocking traffic in front of the first lady's motorcade.
Liyuan and first lady Melania Trump then visited a South Florida school together.
"We think the first thing for the world is the friendship and communication," Lindroos said.
"We have two world powers and if it goes south, it could be very, very disastrous," Chinese supporter Rumin Niu said. "So we really hope there's going to be some kind of meeting of minds -- maybe not now, but at least they have met."
The White House has downplayed expectations for a breakthrough on U.S-China issues like trade and tariffs, insisting that the 24-hour summit is mostly an introductory meeting for Trump and Xi.