Introducing Yourself / Adventurer Plates
Limit who is allowed to view your adventurer plate by accessing Character from the main menu, selecting "Adventurer Plate," and then finally "Privacy Settings."
Adventurer plates are visible to all players by default, but you can restrict access to only those on your friend list by selecting "Friends Only." Selecting "No One" will make your adventurer plate entirely private, meaning only you will be able to view it.
* After adjusting your privacy settings, only players that fulfill the respective criteria will be able to view your adventurer plate.