Q: What if I wanna talk to someone in private?

A: For that, you can use the Chatterbox's "private chat" feature. To send a private note to someone, type "/msg" (or "/tell"), add a space, and then type what you want to say. If you're trying to talk to someone who has a space in their name, you'll have to use an underscore (_) instead of the space in their name.

The link is at the bottom of the chatterbox and here