Everyone starts out with certain default values and settings, but you may change them if you wish. You change settings using the set command; you can view your current settings (or those of another user) using the variables command.
Some settings concern what information the server will transmit to you, such as communications from other players and notifications about games starting or users logging on/off. Other settings concern chess matches, such as your default time controls, whether you will hear a bell when a new board position is sent to you, whether you will be sent a list of the moves for your game automatically when the game is completed (or adjourned), even the format used to send you the board position.
By changing these settings, you can create the kind of atmosphere you would like to have. You can change these settings at any time, even during a given session. For the most part, changes you make to your settings will be saved after you log off and you will not need to change the settings each time you log on.
Your password is also a special setting, although it is never displayed at any point. When you register, you are given a logon password. You may change your password at any point using the password command.
Lastly, it is possible for you to create special aliases to save you from typing phrases you use often. Instead of typing the whole phrase, all you do is type your alias.
See also: alias, password, set, variables