How to Use the Follow Feature on Facebook
The follow feature allows a person to follow your public updates without being your Facebook friend. Likewise, you can follow others’ public updates if they’ve enabled the public follow feature. Your account is already set up for following, in fact your Facebook friends already follow you, but you can enable it so anyone can follow you.
The follow feature is handy if you’re a celebrity or public figure who may have quite a following but who likes to keep your Facebook friends private or at least confined to those people you’ve met in person. Or maybe you like to be available to network but still want to keep some things private.
If you have the public follow feature enabled for your account, any time you post content and set the share settings to Public, your followers will see your updates. Those followers will not see any updates that have customized share settings (such as Friends Only).
Adjusting the follow feature settings for your account
To adjust the follow feature settings on your account, just do this:
Click the gear icon on the blue Facebook toolbar and choose Settings from the menu.
The General Account Settings page appears.
Click the Followers link in the left sidebar.
The Follower Settings page appears.
In the Who Can Follow Me section, select Friends or Everybody.
You can select who can comment on your updates, adjust notifications, and add a Follow plugin to your website to attract more followers.
Anyone who clicks the Follow button, whether they are connected to you on Facebook or not, will see your public updates. However, followers will not see your personal data (such as your birthday).
Following other people’s updates
You can follow someone's updates as long as that person has selected the Everybody follow option. Just go to the person's timeline and click the Follow button, located in the lower-right of the cover photo. You’ll start receiving the person's public updates immediately.