Unfriend a player in a Hub:
1. If players are nearby, an eye icon will appear on their name.
2. Tap the character to view their profile.
3. You will see a blue "Unfriend" button. Tap the button to remove them from the friend list.

Removing friends in the friends window:
1. Tap "Friends" icon on phone menu.
2. You will see a list of friends on the Friends tab.
3. To remove someone from the friend list, tap the "-" button.