Answer:
Step-by-step explanation:
As a professional photographer, you would want to have a business card to show that you are an actual photographer if people around you ask why you are taking pictures.
When you are taking photos, be willing to compromise when a subject doesn't want their photos to be taken in your image. But on a broader note, be able to read the tourist's reaction, if they seem to look uncomfortable each time you take a picture, delete it, and move on. Most likely they don't like you taking pictures at that moment that might include them.