This gallery really shows you How to suck at Facebook? Guys over TheOatmeal don't like what people do on Facebook as inviting for playing FarmVille popular game by saying "I just upgrade my pigs to level 13", inviting you to become a fan for their website page, Tagging you in any picture without a purpose, they just want you to check this photo. And more things like this, check the gallery below and tell me how do you like it?