Simple commands:

Usage Example Description
/nick newNick /nick itchy changes your nick to itchy. If it doesn't work, it means someone else is already using that nick, choose another. (nick limited to 8 characters)
/me action /me is rolling on the floor laughing emotes an action, ie. itchy is rolling on the floor laughing
/msg nick message /msg scratchy Hey, I have a secret to tell you sends a private message to another user.

Emoticons:

:) :-D :-O :o :p ;) :( :| :'( :$ (h) :-@ :@ :s

* If the chat interface is not working for you, you may need an updated version of java which can be downloaded here.
* Chat room will usually be active around 7:00pm - 8:30pm (GMT +8)