A "buddy" is the FusionFall way of saying in-game friend.
How to add a Buddy
To add a buddy, click the screen when a text bubble appears. Then click the "add Buddy" option. The recipient of the request can reject or accept the Buddy request.
Warping, Deleting, and Adding
You can warp to a buddy, but cannot do so in rapid succesion.
You can delete a buddy, and doing so will remove you from their buddy list as well.
You can add a buddy without being near them by clicking the "add" button, and typing in their exact name. This only works if they are online.