Hula Dancing, Waikiki
Waikiki is by far a very interesting "people" watching place. I love to walk down Waikiki at night and see all the tourists begin to unwind after day long activities. The lit tiki torches really add to the "tropical" mood set, as you see literally hundreds of people decked in aloha attire, leis and shopping bags.
Fondest memory: I love to sit at the beach and watch the free hula show, and sunset.