In his Twitter bio, New York-based director Meir Kalmanson says he brings “positive light and life to the people and places around him.” He married this optimistic outlook with his creative film-making skills to produce this feel good hit video. Within a few days, over one million people had viewed his jolly antics as he shared high fives with unsuspecting strangers in the city. They didn’t see him coming! Credit: YouTube/Meir Kalmanson