I found this man on 7th Avenue in Park Slope. He was leaning heavily on his cane, looking down, wearing a grimaced face. I felt bad for him, so I smiled and waved when I walked past.
His face changed completely. He lit up, smiled wide, and gave me a cheery greeting. There was nothing forced about it. He seemed like a man who went through life looking for the smallest excuses to be happy.
I walked 50 feet down the sidewalk, turned around, and walked back to him. “I want to take your photo,” I told him, “because of how big you smiled when I walked by.”
He said: “Well I saw someone smiling at me who I didn’t even know. So I thought: ‘By God! I Better do something!”
Source: Humans of New York