The part I liked best was watching all of the people singing, dancing, tai chi-ing, playing games (like catch-the-ring-on-your-neck), playing cards, etc. Each activity has its little nook, so you can wander around and stumble into a cacophony of traditional-opera-style singing, or a group of women ballroom dancing around a boom box, or the old-people-playground taken over by kids in school uniforms fooling around.