Union Square, San Francisco Christmas tree lighting

On November 26, I went down to Union Square in San Francisco to photograph the Christmas tree lighting event. Moreso than the actual lighting of the tree, I was interested in the masses of people. I like situations that allow me to be more invisible, and like a fly on the wall, photoing with few questions asked. Although, one lady could not understand what I was pointing my camera at. Answer: the most interesting aspect of all events-the people. Maneuvering a tripod through a crowd of thousands was a challenge, but I made it work...