Chatting with other players is easily and conveniently done in the Chat/Messages pane.
Sending messages: To send a message, enter the receiver's name in the Chat with field, enter your message, and click the Send button (or press the Enter key).
Receiving messages: Messages sent to you stream into the message list box in as soon as they come in. This is a dynamic and interactive message list, offering many quick-click features.
Chatting privately: If you click
, a separate window opens for a private chat session.
You can place the window anywhere you please and size it accordingly.
The most recent person a private chat message was sent to or received
from becomes the default recipient, which you can change. The Private
Chat window shows information about the person you are privately chatting
with. The messages it lists are only those messages between the two of
you.
Opening multiple windows: You can open multiple chat windows to conduct multiple chat sessions with selected individuals, tables, or everyone. Just click the Tear-off icon in Chat/Messages pane, and display it in a separate sizable and movable window. You can then place the window anywhere you please and size it accordingly. Each Chat/Messages window operates independently.
Recognizing Chat abbreviations:
You can click 
in the Chat/Messages toolbar to see a list
of the most popular OKbridge abbreviations.
The abbreviations appear in the Information pane where you can refer to
them while chatting.
Allowable chat partners: Your current location determines whom you may chat with, according to the following rules.
All members can chat with members in the Lobby.
Players may chat with opponents and spectators, but not a partner. Players may send a public message to the entire table.
Spectators may chat with members in the Lobby and other spectators, but not players or observers at the table.
Observers may chat with members in the Lobby, the entire table, or other observers at the table.