The United States was No. 33 in positive outlook.
Jon Clifton, a partner at Gallup, acknowledged the poll partly measured cultures' overall tendency to express emotions, positive or negative. But he said skeptics shouldn't undervalue the expression of positive emotion as an important phenomenon in and of itself.
"Those expressions are a reality, and that's exactly what we're trying to quantify," he said. "I think there is higher positive emotionality in these countries."
Some Latin Americans said the poll hit something fundamental about their countries: a habit of focusing on posivites such as friends, family and religion despite daily lives that can be grindingly difficult.
Carlos Martinez sat around a table with 11 fellow construction workers in a Panama City restaurant sharing a breakfast of corn empanadas, fried chicken and coffee before heading to work on one of the hundreds of new buildings that have sprouted during a yearslong economic boom driven in large part by the success of the Panama Canal.
