How to friend and unfriend someone on Facebook
Before you can connect with another person on Facebook and view their full profile, you must first become friends. Below are the steps on how to find new friends on Facebook, add friends, and how to unfriend any of your current friends.
How to find friends on Facebook
Facebook on the computer
Facebook makes it easy to find friends on Facebook through the "Find Friends" link that can be found at the top of your Facebook page or can be opened by visiting the https://www.facebook.com/find-friends link. Also, from this page, you can search for friends based on name, e-mail, hometown, city, school, or employer.
Facebook on the iPhone and iPad
On the Apple iPhone and iPad, you can find friend suggestions by tapping the hamburger menu in the bottom right corner of the screen and then click on Friends. In the Find Friends section, you can tap Suggestions to see who Facebook suggests as a friend or tap Search to find someone by name or e-mail.
Facebook on Android devices
On an Android phone, tap the menu icon in the top-right corner of the screen and then tap Friends. In the Find Friends section, you can tap Suggestions to see who Facebook suggests as a friend or tap Search to find someone by name or e-mail.
How to friend someone on Facebook
Open the person's profile by clicking or tapping on their name and click or tap the Add Friend button in the bottom right corner of their headline picture to add them as a friend.
On Facebook, you will not become friends with that person until they accept your Friend request.
I don't see an Add Friend button
If the person's profile you are viewing does not have an Add Friend button, they have changed their settings to only accept friend requests from people who have friends in common. In other words, you will not see the button until you have one or more friends in common.
You can still send a message to the person asking for them to accept your friend request or send you a friend request.
How to unfriend someone on Facebook
Open the person's profile that you want to unfriend by clicking or taping their name or by searching and then clicking or tapping their name. Once in the person's profile, click the Friends link to open a new window that will allow you to unfriend that person.
If you unfollow a person instead of unfriending them, you will remain friend's but no longer see any of their posts.