I'm currently studying abroad in South Korea, and since I brought my phone with me, I thought that I would see about simply getting a sim card and using my phone while I am here. Is it possible to unlock the phone and/or does it need to be unlocked? I don't really know much about this sort of thing so I'm not even sure if it is possible for me to use it here. My dad bought the phone for me, so I'm pretty sure he bought it through Verizon. Any help would be greatly appreciated!
No one can help you on these forums because Verizon will sensor that type of information. You should try other Android forums. Ie:xda developers, droid life, Android central.
xda developers forum is trustworthy, also there are a lot of youtube videos. droid-life.com has a help guide for the Galaxy Nexus with easy instructions for the stuff you want to know about as well. I used the Droid-life.com Galaxy Nexus Guide
No one can help you on these forums because Verizon will sensor that type of information.
Not only that, but they'll censor it too.