Can you do something for me? Don’t check Facebook at work.
Really, not even once. I don’t just mean Facebook, I mean all social media. As an intern, you probably won’t be bringing your work life home with you, so don’t bring your personal life to work. It’s not easy to do, but it’s worth trying. Most time spent on social media is wasted time anyways, so waste your own time, not your employer’s. Need a break from work? Fine. Go find someone else who isn’t busy and socialize. Work hard: spend your non-work time at work socializing rather than on social media.