Let's take it back to 2009 when we were in middle school and just getting acquainted with the Facebook world. It was a time when your popularity was represented with the number of likes you got on a photo, so naturally, you needed a lot of Facebook friends to stay in the running. You friended every person you'd ever known, looked familiar or wanted to know.

Now, let's fast-forward to 2016 when we are in college. Most of us are looking for internships and jobs and require a more professional, low-key presence on Facebook. How can you possibly undo the seven years of abundant Facebook friending? Who really has time to scroll through their alphabetical friend list only to admit defeat before even making it to the C's?

Well, now you can with this little trick.

One of the great features of Facebook reminds you each day whose birthday it is, which comes in very handy when you almost forget to make a collage of embarrassing pictures to post on your friend's wall. Now, use this feature to keep track of who you are friends with. If it's someone's birthday that you haven't spoken to in the past year, chances are that you should unfriend them. Simply go to their page, hover over the "friends" tab and click "unfriend" at the bottom of the pull down menu.

Now your only birthdays are ones with a familiar presence!

A study conducted by Pew Research Center, found that the average number of Facebook friends for a given user was only around 200 people. This may come as a shock to most of you as you look at your 1,467 friends on Facebook, but try to think back to how many of these "friends" you actually know.

We all fall victim to sending the inevitable Facebook friend request just so we can continue stalking a friend of a friends spring break pictures, but take a moment to think about how dangerous this could be. With many people creating fake accounts just to gather information on others, especially perspective employers, it is vital that the word "friends" is a true statement for all of those people that can view your profile on Facebook.

Time and again people have been denied job opportunities or gotten in serious legal trouble based on what they post on their Facebook page and the people that they allow access to view these posts. While it is very easy to and often encourage to over-share on social media sites, be conscious of who is viewing this information, because chances are, the answer is too many people.

So post responsibly and protect your identity by un-friending unwanted followers.

Now put your Facebook skills to good use and give this article a "like!"