Facebook has launched a new feature called “Nearby Friends.” The feature tells you when your friends are nearby so that you can meet them offline.
Facebook will let you share your location with friends and vice-versa. You will be notified when someone is nearby. The feature also lets you specify certain friend lists and the feature is opt-in.
You can turn it off if you don’t want to share your location. Nearby friends will be rolling out “over the coming weeks.”