By Helen Hanying Liu, trainer and founder of Wall Street Chinese In 2011, two years after I founded Wall Street Chinese at Financial district(Wall Street),  Steve Warren of ChinaAmericaRadio and I met at a Chinese new year party. I had the idea of teaching Chinese to the public for a while and he had the experience and idea of producing an audio mandarin program, so we clicked and started right away. For one year every week, I travelled to his…