Each forum system member gets their own private chat room created by the system on registration. Some of these commands have quick links in the chat room you can just click.
Join a channel:
/join Channelname
Create a private room (Registered users only):
/join
Invite someone (e.g. to a private room):
/invite Username
Revoke invitation:
/uninvite Username
Logout from Chat:
/quit
Private message:
/msg Username Text
Open a private channel:
/query Username
Close a private channel:
/query
Describe action:
/me Text
Set status Away From Keyboard
/afk
Describe action in private message:
/describe Username Text
Ignore/accept messages from user:
/ignore Username to undo /accept Username
List ignored users:
/ignore
Display user channel:
/whereis Username
Kick a user (Moderators only):
/kick Username [Minutes banned]
If kicked without a time, user will be out for 24 hours.
Unban a user (Moderators only):
/unban Username
List banned users (Moderators only):
/bans
Display user IP (Moderators only):
/whois Username
List online users:
/who [Channelname]
List available channels:
/list
Roll dice:
/roll [number]d[sides]
Change username:
/nick Username
Clears the chat window:
/clear