Step 6. Once you are happy with the selection, tap on the ‘Done’ button.
Now, if you visit the profile of a user who is part of your close friends’ list, you will see that the ‘Following’ button is displayed in green compared to the usual blue color. This is just for indicative purposes and holds no other meaning.
Now, if you are unable to see this close friends feature, chances are that you are using an outdated version of Instagram. Try updating the app to the latest build, and if the feature still doesn’t show up, try reinstalling the app.
