Control each time you post
Whenever you post content (like a status update, photo or check-in), you can select a specific audience, or even customize your audience.
To do this, simply click on the sharing icon and choose who can see it.
Choose this icon if you want to make something Public.
Choosing to make something public is exactly what it sounds like. It means that anyone, including people off of Facebook, will be able to see or access it. Learn more about public information.
Choose this icon if you want to share with your Facebook Friends.
Choose this icon if you want to Customize your audience. You can also use this to hide your post from specific people.
If you do not make a selection, your information will be shared with the last audience you selected. If you want to change your selection later you can do that too on your profile.
If you tag someone, that person and their friends can see your post no matter what audience you selected. The same is true when you approve a tag someone else adds to your post.
Always think before you post. Just like anything else you post on the web or send in an email, information you share on Facebook can be copied or re-shared by anyone who can see it.
When you comment on or "like" someone else's post, or write on their Wall, that person gets to select the audience.
You can control who can see the Facebook Pages you've "liked" by visiting your profile and clicking "Edit Profile."
Sometimes you will not see a sharing icon when you post something (like when you write on a Page's wall or comment on a news article that uses our comments plugin). This is because some types of posts are always public posts. As a general rule, you should assume that if you do not see a sharing icon, the information will be publicly available.