As we know by now, Canadian Prime Minister Justin Trudeau has a dapper sense of fashion. He also has his sartorial quirks, mainly in the form of socks. And on Wednesday in New York City, Trudeau may have learned just how buzzy a thing like sock choice can be for a person at his level of visibility on the world stage. During a panel appearance at the Bloomberg Global Business Forum and at a Bill and Melinda Gates Foundation event at Lincoln Center, Trudeau chatted with fellow leaders like Dutch Prime Minister Mark Rutte and Melinda Gates to discuss issues ranging from international economic growth to poverty and disease initiatives.