To chat to people on IRC is quite trivial: type your text, and it appears on the screen. To do more complicated stuff than this, you use commands. All commands begin with /.
There's only one commonly used command, and you can still get along without it. It is the /me command. It allows you to present text as an action performed by your online persona. For example, if your nickname is Razorbill, typing:
/me flaps his wings and clicks his beak!
appears on screen as:
Razorbill flaps his wings and clicks his beak!
This is the same as the : command on MUCKs.
Other commands include:
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