Meet the Locals in Petra
You will run into several locals on your trip in Petra. You can mingle around with the locals. They are friendly and helpful. If you need help, you can ask them and they will do their best to help you out. You will come across the locals selling you things at stalls, they will greet you when you enter the restaurant, and you may even meet locals if you are taking a tour.
Your tour guide will obviously be a local. One of the reasons you should talk to the locals is to understand their culture better. By having a better understanding of their culture, you will be able to navigate through the city like a pro.
If you are hiring a tour guide to show you around the city, they will show you around and introduce you to locals that you meet along the way.