I’ve discovered that white guys carrying manufacturing prototypes are like magnets for people who work for international freight agencies and are also traveling on the subway. All I have to do is sit here and other people come up to me and hand me a business card. This has happened a few times now. At first there is some awkwardness when they start talking to me in Mandarin, but then they hand me a business card and it all makes sense. They nod and smile when I understand, I thank them politely, and then the rest of the trip is silent.