After you set up a profile.
After you set up your profile, swipe to the bottom of the profile screen, tap Follow More Friends, then tap Follow next to those you want to follow.
You can follow friends who are in your contacts list and who use Apple Music.
On the profile screen, touch and hold a profile picture, then tap Follow.
Tap Search, enter a friend’s name, tap it in the results, then tap Follow.
Note: You can only find friends who have an Apple Music profile using Search. Additionally, you must be 13 years or older to view Apple Music profiles. (Age restrictions vary by region.)
To see the people you’re following and those who follow you, open the profile screen, then swipe up.
If a profile picture has a lock on it, you need to ask that person to follow them. After your request is accepted, you see the person’s shared playlists and the music they’re listening to.
Go to the Music app or your profile picture.
Tap View Profile, touch and hold the profile picture of a person you follow, then tap Unfollow.