I like to walk by restaurants and see what the people are eating. It's also fun to take a picture and freeze the moment so I can decide later if I want to go back.
This is another South Beach night scene. I shoot in places where there are a lot of folks out at night. People are relaxed, and it shows when you catch them unaware. But if they see you, faces change in a blink.
We had friends over recently, and Marlise told everyone to act naturally as she snapped some photos. Of course, it had the opposite effect; we all posed and looked unnatural. I guess the tip of the day would be that if you want people to act natural, don't announce you are taking a photo. Unless, perhaps, you are working with actors who are trained to look natural.