So how does the Facebook follow button work exactly?

[666]

If I follow someone on Facebook who I am not "friends" with, will they receive a notification?
I was scanning through my sisters boyfriends page but we aren't friends on FB but I accidentally hit follow! Oops

[Pro Graphics]

He's going to think you're a stalker.

Just kidding.

To unfollow a person, go to that person’s Timeline. From there, click the 'Following' button. Friends won’t know if you’ve chosen to unfollow them.

To unfollow a Page:

Go to that Page. From there, click the 'Following' button. You still like the page, but you’ll no longer see posts in your News Feed.
You can also unlike a Page. Hover your mouse over the Liked button and click Unlike.