@SantosAna,
How do I control who sees posts and photos that I’m tagged in on my timeline?
To choose who can see posts you’ve been tagged in after they appear on your timeline: Click at the top right of any Facebook page and select Account Settings
In the left-hand column, click Timeline and Tagging
Look for the setting Who can see posts you've been tagged in on your timeline? and click Edit to the far right Choose an audience from the dropdown menu
You can review photos and posts you're tagged in before they appear on your timeline by turning on timeline review. Keep in mind, photos and posts you hide from your timeline are visible to the audience they're shared with other places on Facebook, such as in News Feed and search.
Or:
What is tagging and how does it work?
A tag is a special kind of link. When you tag someone, you create a link to their Timeline. The post you tag the person in may also be added to that person’s Timeline. For example, you can tag a photo to show who’s in the photo or post a status update and say who you’re with. If you tag a friend in your status update, anyone who sees that update can click on your friend’s name and go to their Timeline. Your status update may also show up on that friend’s Timeline.
When you tag someone, they'll be notified. Also, if you or a friend tags someone in your post and the post is set to Friends or more, the post could be visible to the audience you selected plus friends of the tagged person. Learn more.
Tags in photos and posts from people you aren't friends with may appear in Timeline review where you can decide if you want to allow them on your Timeline. You can also choose to review tags by anyone, including your friends.