Two types of "Following" on Facebook

I hope everybody already heard about following. Nowadays, this word is very hot on Facebook & Instagram. Following is same with subscribe.

There are  two types of following on facebook. First, for example, you and your friend are not friend. But you can see his posts by following him if he is ON follower mode.  Second, for example, you and your friend are already friend on facebook. You don’t want to see his posts, But you don’t want to do unfriend. If so , you can OFF following.  Go to his timeline and then do following to follow. Then, you cannot see his posts.

you can see his/her posts.

you cannot see his/her post.