At a VIP reception before the opening ceremony, Pence and Kim Yong Nam were in the same room, according to Jarrod Agen, his deputy chief of staff, but Pence "did not come across the North Korean delegation" at the event.
North and South Koreans marching together under a unified peninsula flag gave Thomas Bach goosebumps, the International Olympic Committee president told Reuters on Saturday.
It was the rivals' first joint Olympic march since 2007.
Bach praised both Olympic committees for combining their athletes for the games, saying it was an example of the unifying power of the Olympic Games.
It was left to 2010 Olympic figure skating champion Yuna Kim to light the Olympic flame. In other parts of the world, peace has started with lesser moments than this. "It is valued in Korea as it is valued everywhere where we struggle to try to address the many complex conflicts that we are facing", he said. "We are all touched by this wonderful gesture".
Still, as the Opening Ceremony got underway, a number of confused viewers took to social media to inquire about what appeared to be sections of empty seats. His son, Otto Warmbier, died after being returned to the US with extensive brain damage he suffered while being detained in North Korea.
On Thursday, PyeongChang also saw another protest over the arrival of a North Korean orchestra which had arrived to perform at the Games.
DPRK and South Korea will also form a women's ice hockey team to compete at PyeongChang. While it isn't known what kind of message she'll relay to Moon, any move toward a summit is likely to help maintain a temporary break in tensions on the peninsula after a year of missile and nuclear provocations.
The rival Koreas, flirting with war just weeks ago, are suddenly making overtures toward the no-longer-quite-so-absurd notion of cooperation.
North Korea has sent hundreds of people to Pyeongchang, including officials, athletes, artists, journalists and a 230-member cheering group.