haha just go into town and ask people via /shout. not sure if anyone explained exactly what they are. A linkshell is an item that you equip (not via equipment but through the linkshell screen) and it just lets you chat with anyone else wearing it too, which is how people form long term groups in the game to do things together. so just head into town ask shout saying, your a new player looking for a social linkshell for people to do stuff with. and there are plenty of more places to get better exp but also just spam killing lower exp mobs can be just as fast or even faster, just try to explore everywhere, or ask around in game.