What should I say when a japanese person does not want me to take their picture?

Question:

I am a hobby photographer in Japan. I often ask people on the street if I can take their picture. Most people allows me to take their picture, but some people don't.

What should I say when a japanese person does not want me to take their picture? Should I just say "Ok" (okee!) or "sumimasen" (sorry) + do a quick bow?

Cheers!

Answer:

Well, you can use many words including OK and sumimasen. And you don't need to care about bowing so much. You can bow or you don't need to bow if you don't want.

It's not formal relationship. It's just brief conversation on streets. So you don't need to care bow.