Well the room might have felt chill at the recent Asia-Pacific Economic Cooperation forum.
Known as APEC, the summit brings together the leaders of 21 countries, including the leaders of the three biggest economies in the world: the United States, China and Japan.
An economy refers to the wealth and resources of a country or region.
Relations between China and Japan have been cold for a long time now. The two countries have a hostile history, and both lay claim to a series of islands in the East China Sea that are uninhabited but strategically important.
The handshake by the two leaders, Xi Jinping of China and Shinzo Abe of Japan, was curt.
The two also met for almost half an hour, less than typically allotted for such meetings but it was still considered an important step in thawing relations between the two powerful nations.