People watching is great fun.
It is also helpful for photographers to learn to notice expressions, moments and generally the stories that people’s faces tell. Telling a story with a face is, after all, what portrait photography is all about.
I was out in town one day with my lensbaby on my little camera just sitting people watching when this guy caught me doing it. I wasn’t even looking his way when he called out “Hay, Camera Man – take my picture!!!”. Id been sprung!!!
So 5 minutes and 20 or so pictures later we went our separate ways.