It was surprising that more than 90% of the people in line for the new iPhone in New York, wearing warm jackets and sitting in portable chairs, were Chinese. They weren't Chinese tourists or Chinese-Americans, but the workers you often see doing the lowest-wage jobs in Chinatown.
Food-truck grazing is a great, casual, and often inexpensive way to dine, but it's not a free-for-all. Food-truck vendors are small business owners, and following certain rules when patronizing them makes everybody's experience more enjoyable.
In the end, Shanghai's World Expo was not an international event. It was orchestrated as a domestic power display, in the same vein as the country's 60th anniversary military parade and this fall's Asian Games.
A receiving line is the perfect opportunity for guests and hosts to meet one another at a large event. They are only essential for groups of fifty or more, when it's otherwise impossible for the hosts to greet everyone individually.