A small footbag is becoming a big social moment again for some young people in the US, as hacky sack videos spread online and students bring the game back to schoolyards and gyms. In China, the same spirit can be seen in Jianzi, a traditional shuttlecock-kicking game that still draws people into circles in parks and neighborhoods. Whether in a Chinese park or on a campus overseas, the fun is not just about keeping the object in the air, but about rhythm, laughter and connection.