So many students frequent the library; some could even consider it a second home, myself included. It's a place to study, but also a place to escape to when class or home aren't options.
If only everyone was courteous.
I can't count the number of times that I've almost slammed my head against a desk because someone wouldn't shut up while I was working. The same goes for gum smackers and loud chewers. Take your phone call outside, and keep the noise of snacking to a minimum.
Also, please, keep the laughter under control. Yes, that cat meme is hilarious, but not everyone needs to know just how hilarious it is. This is especially important during finals seasons. Tension is at its peak during this time. While laughter is a good stress reliever, the library isn't the place for absurd amounts of it.
Sniffle season is the worst season for the library. No one can control the sniffles, so I'm not holding the disturbance against anyone. We've all been there. Stock up on DayQuil and tissues, though.
I often wonder in what world it's okay to listen to music so loudly that I know what someone's listening to and can sing along. Mars? Jupiter? If you're an offender, lower the volume to an appropriate level next time. Otherwise, don't question why that girl two tables away is glaring at you.
However, prime offenses don't always involve noise though. The hunt for a spot to work at can be daunting. On numerous occasions, I've seen one student sit at a desk that can fit four to six people. Does one person truly need that much space? There are plenty of one-person desks in the library. Use those instead, and leave the big tables to big groups. (I say this as I hog a four-person desk to myself.)
And please, for the love of everything that is good, leave your shoes on.
It's not difficult to be the perfect library goer. Just remember the hard-and-fast rule: Don't be a jerk.