Zenless Zone Zero How to add a friend to your friends list
Step 1: Click on "Me" While in-game
Step 2: Click on your Name in the top left corner
Step 3: Click Add Friend
Step 4: Enter their UID
A UID is the tiny numbers on the bottom right side of your screen,
Step 5: wait for them to accept the friend request!
Step 6: Friendsies for life!!!