'Tonight in Montreal, @BarackObama and @JustinTrudeau discussed their shared commitment to developing the next generation of leaders,' the Obama Foundation tweeted alongside a photo of the two friends sitting down at a dinner table inside Liverpool House.
The 45-year-old politician also shared a similar photo of the pair inside the eatery and tweeted, 'How do we get young leaders to take action in their communities? Thanks @BarackObama for your visit & insights tonight in my hometown.'
Crowds waited for hours to get a glimpse of Trudeau and Obama leaving Liverpool House, which is located in Montreal's Little Burgundy neighborhood, Global News reported.
A video capturing the moment when the two world leaders exited the eatery shows the crowd erupting in cheers as they both smiled ear-to-ear and waived.
For a moment, Trudeau appears to be shocked at the large number of people who gathered to see them outside of Liverpool House.
As Obama heads to his waiting SUV, he pauses for a moment before turning around to give his old pal a friendly and long hug goodbye, as they both seemingly realized it's unclear when they'll meet again.
The Prime Minister idles for a few moments after their hug to say a few final words to the 55-year-old former president as the crowd is still cheering for them both.
Obama gets into his SUV and pulls away while Trudeau stands by and waives before departing with his security guards.
It's unclear what the two friends ate while having their private dinner, but a description on the restaurant's website describes it as having 'seaside cottage charm and bustling oyster counter (with) sexy old world wines, and crazy fresh market food'.
Trudeau did not attend Obama's half-hour speech at the city's Palais des congrès, where he addressed the Paris Accord and delivered an extended, vicious coded critique of his successor Donald Trump.
'Obviously I'm disappointed with the current American administration decision to put out of Paris,' Obama said.
'We're going to have to act with more urgency. I'm looking forward to the United States being a leader and not just on the sidelines going forward.'
Obama drew laughter with a thinly veiled kick at the Trump administration's famous embrace of 'alternative facts,' saying that America in the less than 20 weeks since he left office has suddenly devolved into a place 'where we don't just have disagreements based on our opinions, but now people are just disagreeing on facts.'
'And we're in an environment where we are only accepting information that fits our opinions, instead of basing our opinions on the facts that we receive. And evidence and reason and logic.
Obama claimed that in an age when some world leaders are willing to 'violate our principals because of fear and uncertainty,' progress – measured by the work of multinational coalitions and institutions' can't continue.
'We have to sustain our alliances. We have to help other countries with their own development,' he said, without explicitly mentioning Trump's 'America First' philosophy.
The alternative, Obama suggested, would see anti-democratic forces swooping in to fill the voids left by globalist cooperation.
He said the result could be 'intolerance and tribalism and organizing ourselves along ethnic lines.'
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