Personalise Facebook SubscriptionsSubscriptions is the actual mechanism by which to follow people on Facebook. Subscriptions let you see other people's public posts in their Facebook News Feed; normally you post to your friends and subscribers by selecting "public" which means everything you post publicly will appear in the subscriber's News Feed. They automatically subscribe to follow you.

You can also Subscribe to people without having to friend them, which works for brands or celebrities. You can get their public updates in your News Feed by going to their profile (timeline) and clicking on the Subscribe button.

You can also personalise the updates you see in your subscriptions. Read more of this post