Feral Heart

Alright, so There are always tons of players on The Grounds, TONS. But in every chat section I check, nobody is talking, except maybe 5 people at most in one random one. So my question is, where exactly are the tons of other people talking? Is there a main chat that I somehow don't know about? I'm shy and tend not to talk to people and it's difficult for me to form friendships. So if they're all in there own little group somewhere, what's the biggest one on the game that most people are in?