Moving onto third step, what actually is important to Facebook is understanding how privacy works in Facebook. They’ve got a guide where they explain what privacy settings mean.
Every time you post on Facebook, whether that’s text, photograph or a video, on your own Facebook page, you can choose who see that.
So you can make it open to public that means anyone in the world, even those who are not on Facebook, they can see what you have posted on your profile page.
Or you can choose it to be visible to only your friends on Facebook. There’s other settings too,
You can make small groups of friends and family and can choose to only share your stuff with them.
After you have posted on Facebook you can choose to change these settings any time too.
So if you post something you can decide whether not to share it with anybody or with your friends, family or even everyone.