A walk through the streets of Shanghai can throw up a lot of surprises, especially in the suburbs, away from the main tourist areas. Like an open-air dance session in full flow in a public sidewalk. Shoppers on the streets of Shanghai I frankly didn’t know they have a term for it – Guang Chang Wu. It’s also called plaza dancing or public square dancing and has been very popular among the middle-aged throughout China since the 1990s. Public square dancing The routine is simple. The neighbourhood gather around at a park or, in this case, a large public sidewalk, and dance through well-choreographed routines as music plays in the…