"I think people here are happy about the summit", said Zainudin Deen, a financial consultant who was walking nearby the Shangri-La Hotel where Trump and his entourage are staying.
"We don't know. Kim might also want security assurances from China, Russia, and the United Nations Security Council", Kovrig said.
He is one of the few westerners to have met the North Korean leader on visits to the capital city Pyongyang.
The pledge on denuclearization did not include the USA demands for a "complete, verifiable, irreversible dismantlement" of North Korea's nuclear weapons programs, she pointed out. The document also made no mention of the global sanctions that have crippled North Korea's economy, for pursuing its nuclear weapons program.
Critics of the summit leapt at the leaders' handshake and the moonlight stroll Kim took Monday night along the glittering Singapore waterfront, saying it was further evidence that Trump was helping legitimize Kim on the world stage as an equal of the USA president.
South Korean President Moon Jae-in has no current plans to join President Donald Trump and North Korean leader Kim Jong Un at the end of their summit Tuesday in Singapore.
She said the USA delegation would be led by Sung Kim, a veteran diplomat who recently held talks with North Korean officials. Sources told Axios that measure was conditional upon what Kim was willing to give the U.S.in return.
The summit - the first ever between a sitting American president and North Korea's leader - would have seen the two leaders greeting each other, before a one-on-one meeting which a United States official said could last up to two hours, with only translators joining them.
He would not say whether that included the possibility of withdrawing US troops from the Korean Peninsula, but said the context of the discussions was "radically different than ever before".
Trump continued to tweet angrily at Trudeau from Singapore, saying Monday "Fair Trade is now to be called Fool Trade if it is not Reciprocal".
- Trump and Kim will start their historic summit at Sentosa Island with a one-on-one session with translators.
That's in part because of South Korea's diplomatic outreach to the North, which was highlighted by two summits this spring between the rivals' leaders.
The senior official at the Blue House - who wished to remain anonymous - said that doing so would suggest that a summit agreement between Pyongyang and Washington was a done deal. "There is a very wide gap between the US and North Korean negotiating positions, and finding common ground will require a sustained diplomatic process with high-level buy-in from Pyongyang and Washington", Daniel Wertz, associate director of the National Committee on North Korea, told Newsweek.
Experts believe the North is close to being able to target the entire USA mainland with its nuclear-armed missiles, and while there's deep skepticism that Kim will quickly give up those hard-won nukes, there's also some hope that diplomacy can replace the animosity between the US and the North.
Monday saw the Blue House official say the "very significant meaning" Kim-Trump meeting would be if the two confirmed each other as "credible partners".
Pyongyang's definition of denuclearization is much more opaque, but is believed to be much broader in scope and possibly include things like USA nuclear-capability assets in the region, Washington's large troop presence on South Korea or its inclusion of Seoul in its "nuclear umbrella".
This is Kim's first known trip outside Northeast Asia since taking power in 2011.
On Monday evening, Kim's first stop was a waterfront park with futuristic installations, Gardens by the Bay, which boasts the largest glass greenhouse and tallest indoor waterfall in the world.
Mr Trump has forecast a "nice" outcome to the talks, while Mr Kim spent the day out of view. Pyongyang is demanding as yet unspecified security guarantees and the end of what it calls a "hostile policy" towards it, and has not made clear what concessions it is offering over the nuclear arsenal it calls its "treasured sword" to defend against a U.S. invasion.