PokéPal shows you the location of your friends so that you can team up to take on gyms and have adventures together! After all, catching creatures is more fun with pals!
Only your Facebook friends can see your location, so dont worry about random strangers tracking you down.
If you want to go incognito, just turn off your location visibility and no one will be able to see you in the app.
Stay safe and go catch em all!