How to Make Your Facebook Friends Uncomfortable

We've all encountered them: the people on Facebook who always manage to make things creepy and awkward.

If you actually ENJOY making your Facebook friends uncomfortable, Gizmodo has come up with a list of 'The Creepiest Things You Can Do on Facebook:'

1. Post a picture of your face on someone else's wall with NO explanation
2. Tag yourself in someone else's engagement photos
3. Comment on a photo from a long time ago, but act like it's current
4. Request someone's relationship status
5. Poke someone's grandma

For the full list, click HERE.

What is the creepiest thing you've ever seen someone do on Facebook? Share your story below!