English: Sometimes it's simply a function of the weather: people dress differently, act differently, and are engaged in different activities in early spring than they do in summer or late fall. But much of it simply has to do with the incredible variety of people who take advantage of the opportunity to relax, read a book, jog, or picnic with their families. So ... this just happens to be what it looked like in Riverside Park on the last day of May, in 2009.