While both the naturalized and South Korean-born players used English words for basic ice hockey terms such as "shoot", "pass" and "change", the North Korean players did not use any English terms.
Ten other North Korean athletes will also be participating in the Winter Games under their own flags, including short-track speed skating, figure skating, alpine skating and cross-country skiing.
The invitation, delivered by Kim's visiting sister Kim Yo Jong, said Kim was willing to meet the South's leader "at the earliest date possible", said a spokesman for the presidential Blue House.
The two Koreas remain technically at war after their 1950-53 conflict ended in a truce rather than a peace treaty.
The last summit was held in October 2007 between Roh Moo-hyun and Kim Jong Il, the father of the current North Korean leader. Kim Yo Jong also handed a personal message to Moon from Kim Jong Un in her capacity as his special envoy. "Because in my opinion, they're pretty much the same person", the Kim impersonator said.
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But experts are skeptical of Pyongyang's motives.
The Perry Process included freezing North Korea's nuclear and missile programmes and normalising relations between Pyongyang and Washington.
Even Japanese Prime Minister Shinzo Abe, who has shared the American skepticism of warming North-South relations and pressed Moon against falling for the North's "smile diplomacy", greeted Kim Yong Nam.
"It was with an ardent desire that the people of Korea aspired to host the Winter Games, the only divided nation in the world".
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Trading has been extremely choppy, and the market has swung in wide ranges - up and down almost 2,300 points over the past week. The first drop took place on Monday, when the index dropped by 1,175 points, making it the worst plunge in its history.
While a summit in Pyongyang would signal warming ties on the peninsula, it also risks driving a wedge into the alliance between the United States and South Korea. "At this time we can not confirm (a cyberattack)", he said.
"I leave here very confident that we are going to continue to do the things we know have to be done to continue to pressure North Korea to abandon their nuclear ambitions", Pence said.
Cyber security experts had warned of potential attacks on the Winter Olympics, with both North Korea and Russian Federation touted as possible sources.
Pyongyang is believed to be maintaining its policy of pursuing weapons of mass destruction to make the United States accept the continuation of the country's hereditary regime.
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The attack helicopter came down near Qaddah village, in Syria, where Turkey is carrying out an offensive against Kurdish fighters. Mr Erdoğan who spoke on Saturday in Istanbul did not disclose the name of the Syrian Kurdish People's Protection Units or YPG.
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