I hasten to add that the pictures in the link aren't mine! But maybe some day I might get to that level.
I want to take pictures of people going about their daily life.
Thank you for your answer godwine. It sounds like there is no cultural taboo againtst taking pictures in the street at least, so I'm going to give it a go. Maybe I'll get a black eye or maybe I'll end up with cement shoes at the bottom of Tokyo harbour