When in photography, moments are always going to pass you by. You simply just can’t ask the world to redo a certain action. Perfect opportunities come and go and rarely do you get a do over. If you have a camera, and just so happen to come across a certain scenery or subject with the compositional elements you desire, you better as well take that photo before that moment passes. But then you may also want to consider the consent of your subjects; if they want to be in your photos. That’s why at times there’s a bit of anxiety in photography; wanting to capture the right moment but worrying what someone may say if they notice you. You always need to be on your guard when committing to photography.
It’s hard not to be anxious when people are in the photo or they are just around wondering what you are doing. If they are not in the photo, stay focused and ignore them. If they are in photo there is no rule other than don’t seem sneaky . If you find something that interests you shoot the photo and worry about the anxiety later