President Trump appears to be caught off guard by ASEAN summit's group handshake

PHOTO: President Donald Trump, Vietnams Prime Minister Nguyen Xuan Phuc and Philippines President Rodrigo Duterte perform the group "ASEAN handshake" in the opening ceremony of the ASEAN Summit in Manila, Philippines, Nov. 13, 2017. PlayJonathan Ernst/Reuters
WATCH President Trump appears caught off guard by handshake at ASEAN summit

President Donald Trump, who is known for his trademark, prolonged and at times aggressive, handshakes with world leaders, was momentarily caught off guard executing a different kind of handshake, at an international summit in the Philippines on Monday.

Interested in Donald Trump?

Add Donald Trump as an interest to stay up to date on the latest Donald Trump news, video, and analysis from ABC News.
Add Interest

PHOTO: President Donald Trump, center, participates in the ASEAN-way handshake with Vietnamese Prime Minister Nguyen Xuan Phuc, left, and Philippine President Rodrigo Duterte, right, at the ASEAN Summit in Manila, Philippines, Nov. 13, 2017.Andrew Harnik/AP
President Donald Trump, center, participates in the "ASEAN-way handshake" with Vietnamese Prime Minister Nguyen Xuan Phuc, left, and Philippine President Rodrigo Duterte, right, at the ASEAN Summit in Manila, Philippines, Nov. 13, 2017.

Trump was in Manila attending the Association of Southeast Asian Nations summit, which began with an opening ceremony and photo op of attending world leaders. The heads of state were invited on stage to participate in the conference's traditional ASEAN group handshake, in which each leader crosses their arms and joins opposite hands with the leaders next to them.

PHOTO: President Donald Trump, center, reacts as he does the ASEAN-way handshake with Vietnamese Prime Minister Nguyen Xuan Phuc, left, and Philippines President Rodrigo Duterte at the ASEAN Summit, Nov. 13, 2017, in Manila, Philippines.Andrew Harnik/AP
President Donald Trump, center, reacts as he does the "ASEAN-way handshake" with Vietnamese Prime Minister Nguyen Xuan Phuc, left, and Philippines President Rodrigo Duterte at the ASEAN Summit, Nov. 13, 2017, in Manila, Philippines.

Photographs captured Trump as he seemed momentarily confused by the handshake.

PHOTO: Russian Prime Minister Dmitry Medvedev, Vietnams Prime Minister Nguyen Xuan Phuc, President Donald Trump, Philippine President Rodrigo Duterte and Australia Prime Minister Malcolm Turnbull at the ASEAN Summit, Nov. 13, 2017, in Manila.Jim Watson/AFP/Getty Images
Russian Prime Minister Dmitry Medvedev, Vietnam's Prime Minister Nguyen Xuan Phuc, President Donald Trump, Philippine President Rodrigo Duterte and Australia Prime Minister Malcolm Turnbull at the ASEAN Summit, Nov. 13, 2017, in Manila.

President Trump appeared to be awkwardly hugging himself once he got into the cross-armed, handshake position.

PHOTO: President Donald Trump, center, reacts as he does the ASEAN-way handshake with Vietnamese Prime Minister Nguyen Xuan Phuc, left, and Philippine President Rodrigo Duterte at the ASEAN Summit, Nov. 13, 2017, in Manila, Philippines.Andrew Harnik/AP
President Donald Trump, center, reacts as he does the "ASEAN-way handshake" with Vietnamese Prime Minister Nguyen Xuan Phuc, left, and Philippine President Rodrigo Duterte at the ASEAN Summit, Nov. 13, 2017, in Manila, Philippines.

After some effort and grimacing, Trump smiled as he successfully executed this traditional handshake.

PHOTO: President Donald Trump, center, and other leaders do the ASEAN-way handshake on stage during the opening ceremony at the ASEAN Summit at the Cultural Center of the Philippines, Nov. 13, 2017, in Manila, Philippines. Andrew Harnik/AP
President Donald Trump, center, and other leaders do the "ASEAN-way handshake" on stage during the opening ceremony at the ASEAN Summit at the Cultural Center of the Philippines, Nov. 13, 2017, in Manila, Philippines.

ABC News’ Jordan Phelps contributed to this report.

Comments