ok tryxt3r read all rules and need to know stuff in toribash before you start posting on like serious topic's plz cuz u can get into serious trouble if u post like 2 or 3 times in one go, believe me i know lol
If you mean how do you private message people then you go to UserCP, send new message, then type their name into the "Recipient Username(s)" box an fill out the message.
You can also click here, then type their name into the "Recipient Username(s)" box an fill out the message.