I hope I only have to write this post once, but today, Harvard's decision to rescind admissions offers to admitted students over their social media posts has gone viral over the internet.
Check out this story on CNN: http://www.cnn.com/2017/06/05/us/harvard-memes/index.html
69% of admissions officers report looking at applicants' social media profiles. They don't need to see yours.
(1) If you use social media, keep it private.
(2) Keep social media posts PC. Use the New York Times test. Before posting, ask yourself, would you want that post, like, comment posted to the front page of the NY Times and attributed to you? If the answer is no, do not post/like/etc. Liking something offensive or politically incorrect can have just as dire consequences as the original post. Things can be taken out of context and an inside joke can make a person look terrible.
We live in a hypersensitive era and the repercussions are enormous (college and jobs). Use the good judgment we know you have!