Although Mid-Autumn Festival has a few days to go, Shanghainese cannot help to line up(排队 páiduì) for purchasing mooncakes one month earlier. In the morning on weekdays, middle-aged aunties and uncles are already in lines for hours waiting for the fresh baked mooncake. Queuing seems to become one of people’s survival skills in Shanghai. If you want to experience something new and famous, you have to observe this convention…