If you look like you belong, most people will not spend the time to inspect you. Carry yourself like you belong, act like you were born where-ever you are, do not look lost or confused. Be confident, you can handle the situation. Make eye contact. This includes everyone.
Predators look for the easiest prey.
If you look easy, they will go for you. If you look tough, but not challenging or threatening, they will wait for easier prey. Make sure you understand the rules of the territory. Learn to scan. Let your eyes wander around your surroundings and notice what is going on.