Most characters do not, in fact, use a ton of emotes and esays. The role-playing is more of the "I have a role and my character behaves in accordance with that role" variety. Like if your evil character has in his role that, for some weird reason, he really loves dwarves and would never harm one, then you should...not harm dwarves. That's role-playing.

Do note that the Herald cabal (and Inn of the Eternal Star) is the typical place where folks who really enjoy sitting around and interacting verbally hang out. That's kind of its niche. But it also doesn't exempt you from the PK environment. You're "somewhat" safer inside the Inn (since bouncers will assist you when you're attacked and you can't be stalked by assassins), but nothing stops someone from running and bashing you down.