1. Send Message:
Select the target you want to chat with, type your message and press Enter to send it.

2. Add Chat List:
Press Shift, click on the player you want to chat with, and then click to add him/her to the chat list.
Remove Chat List:
Click and select the name from the list, then click to remove him/her from the chat list.

3. Talk:
There are several chat channels.
Talk: Players nearby receive the message.
Whisper: Only the target receives the message.
Guild: The guild members receive the message.
Clan: The clan members receive the message.
Friend: Only friends receive the message.
Team: Only teammates receive the message.
Service: GM and friends receive the message.
Broadcast: All players in the server can see the message. (Details).
World: All players in the server can see the message.

4. Select Target: There are 4 ways to target the player you want to chat with.
1) Type their name in the box.
2) Press Shift and left click on them.
3) Press Alt and click on the message.
4) Select the name from your chat list, if they are in it.

5. Clear: Clear messages from the screen.

6. Chat: Click on it to check chat log, or set chat channels, filters, text color and black list.