HLN digital lifestyle expert Mario Armstrong is worried about your Facebook privacy settings. He's worried because so many of you have not bothered to set them, or even LOOK at them. It's important to take a few simple steps to make sure people aren't getting on your Facebook page and posting stuff you don't want up there. For example, you can prevent someone from tagging you in that pic that makes it look like you have three chins ... and you should! 

Follow along in the video above and Mario will take you step by step through a few clicks that could keep your Facebook timeline free from stuff you don't want there!

If you are worried about someone accessing your account without your permission, set it up so that Facebook emails or texts you when someone from an unfamiliar computer logs in as you. Yeah, you can do that! You turn on the notification in general account settings, under security. 

But the simplest suggestion ... and one that people always seem to forget ... when you are done lurking ... er ... reminiscing through your high school sweetie's timeline: LOG OUT. A lot of people think simply closing the browser is enough, but unless you actually log out, anyone with access to whatever computer you were using can just sit down, open the browser and find you all nice and logged in. That could get ugly, depending on who found your account all vulnerable and ready for plundering.

These may seem like obvious things to you, but to 13 million other Facebook users who have nothing but the defaults in place ... not so much.
 
Let us know if we've convinced you to take some baby steps toward additional privacy by trying some of Mario's suggestions. We'd love to hear about your experience.