So true!
I have 2 good tips:
A good photo consists of your surroundings as well as you're pose!
When going outside, mind the people around you. Don't start going crazy, you might scare people. o_O Keep calm and go about your business.
Safety tip:
When being asked by a photographer to go somewhere else for a good photo, always bring someone with you!
You may also refuse at anytime! And try not to go to far! We all care about you too!