Pence was in close proximity to the North Korean party both at the VIP reception and later, watching the Opening Ceremony from Moon's box, which included Kim Yong Nam and leader Kim Jong Un's sister, Kim Yo Jong.
South Korea's presidential office said after the meeting that the North Korean leader has invited Moon to visit his country and expressed willingness to improve inter-Korean ties in the letter.
Pence said Friday that the USA would oppose talks between the two Koreas until the North agreed to open negotiations on ending its nuclear program, and he was silent Saturday on the news of the invitation.
Many experts say Kim's overture is meant to use improved ties with Seoul as a way to weaken US -led worldwide sanctions toughened after its series of big weapons tests past year that include its sixth and largest nuclear test explosion and three intercontinental ballistic missile launches.
The sheet included word comparisons for commonly used goods and services, a hotel official said.
"There is no daylight between the United States, the Republic of Korea and Japan on the need to continue to isolate North Korea economically and diplomatically until they abandon their nuclear and ballistic missile program", Pence said as he flew back to the United States.
Choi Bok-mu, a fitness club manager at the Olympics athletes village in Gangneung, said he had not experienced any problems communicating with North Korean athletes, despite them speaking in a markedly different accent.
When a ferry carrying North Koreans to the Games docked in South Korea last week, the North asked its hosts for the fuel needed to get it home, Seoul's Unification Ministry said.
After months of silence on whether it would even take part in the Pyeongchang Winter Olympics in the South, the Games have driven a rapprochement on the peninsula, while the North's athletes, performers and delegates have dominated the headlines. The United States fought with South Korea and maintains tens of thousands of troops and an "ironclad" agreement to protect its ally.
Deepening the odd-man-out optics for Pence, Moon and Kim, smiling broadly, exchanged a handshake and cheered the team enthusiastically.
"Make no mistake about it, the United States of America has viable military options to deal with a nuclear threat from North Korea but, that being said, we hope for a better path", he said.
The jet flew with the official Korean standard and the name "North Korea" inscribed on its side. Dennis also boosted his career as an actor perfectly portraying the USA president with his distinct gestures and facial expressions.
"But the Olympic moment that President Moon is trying to generate here is not a time to nurse those grievances", Jannuzi said.
South Korea may also need to persuade traditional allies the United States and Japan, which have raised concerns that the North is attempting to use its outreach as a release valve for worldwide pressure.
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