You can easily see who you follow and who follows you. These contact lists are accessible from any page where your profile header appears (on both web and the Flickr app), like your Photostream, About, or Albums pages.
Follow a member
Web browser
Flickr app
Select the Flickr member's name to view their profile.
Select Follow to add them to your contacts.
Tap the Flickr member's name to view their profile.
Tap Follow to add them to your contacts.
Unfollow a member
Web browser
Flickr app
Select the Flickr member's name to view their profile.
Hover over Following.
Select Unfollow to remove them from your contacts.
OR,
From the feed, tap the three-dot menu on their post.
Tap Unfollow.
Tap the Flickr member's name to view their profile.
Tap the Tick icon.
OR,
From the homefeed, tap the three-dot menu on their post.