You can change your privacy settings by tapping on your Bitmoji on the map and editing your settings.

Enable 'Ghostmode' which hides your location from your friends.

Make your location visable to selected friends only.Make your location visible to all your friends,.When you activate Snap Maps for the first time, you are given three options: What if I don’t want to share my location? Sometimes, their Bitmojis might even show if they’re driving, walking, or more! If they don’t have their Bitmoji account linked, then you’ll see them as a blank Bitmoji outline. You can find friends by looking for their Bitmoji on the map. Users locations are only updated when they are using Snapchat. You can then tap on a friend to start a chat or see when their location was last updated. To open the Snap Map, go to your camera screen within the Snapchat App and pinch your fingers in like you’re zooming out from a photo. Only the people you choose can see your location – so if you’re friends with your boss, you can still keep your location on the down low during a “sick day” Snaps you submit to Our Story can still show up on the Map, though!” How does it work? If you and a friend follow one another, you can share your locations with each other so you can see where they are and what’s going on around them! Plus, meeting up can be a breeze. “With the Snap Map, you can view Snaps of sporting events, celebrations, breaking news and more from all across the world.

How to get snap map