The two appeared to share some sort of private joke as they met Friday.
President Trump warmly greeted Russian leader Vladimir Putin Friday with a highly anticipated handshake the world had been waiting to see.
They pressed the flesh again a few minutes later, but ignored questions about Russia's meddling in the 2016 election.
Read: Artist Creates Image of Vladimir Putin in Wheat Field Ahead of G20 Summit
Inside Edition showed the video of the interaction between Trump and Putin to body language expert Dr. Lillian Glass, who says the U.S. president appeared more dominant than the Russian strongman.
"Trump is completely taking control," she said. "The handshake is very strong on both of their parts. This is a very strong handshake."
She also noted some tension in Putin’s face, saying: "He is not used to another leader taking control. He is usually the one in control of things."
Trump and Putin also appeared to share a private joke after meeting.
During their second greeting, Dr. Glass pointed out that Trump not only shook Putin's hand, but grabbed his arm, an action she called "a power move."
Meanwhile, first lady Melania Trump was trapped inside the German guest house where she and the president are staying as riots broke out for the second straight day on the streets of Hamburg.
Protected by an impenetrable barricade of police vehicles outside the home, German authorities said it was just not safe for her to join the other spouses of world leaders on a tour of the city as protestors battled riot cops during the G20 Summit.
Read: No Room at the Inn for President Trump as All Luxury Hotels in Hamburg Are Booked
The first lady tweeted from inside the mansion.
“Thinking of those hurt in #Hamburg protests. Hope everyone stays safe,” she wrote.
Thinking of those hurt in #Hamburg protests. Hope everyone stay safe! #G20
— Melania Trump (@FLOTUS) July 7, 2017
After the demonstrators were dispersed by water cannon and tear gas, Melania was finally able to join the president.
Watch: Everything Must Go as Liquidation Sale Kicks Off at Atlantic City's Trump Taj Mahal