Once contacts have been added, users can send messages/Chat with others as follows:

1. Login to the Pidgin Chat client. All authorized contacts will be visible in the window (as shown below)

2. Double click on the username to chat with. That will bring up following Window.

3. To send messages/chat, type in the message in the edit box at bottom of the screen and press Enter.
4. Whenever the other user types a message, the same will appear in the top portion of the screen.
5. The content of the conversation will appear in the top portion of the chat window, with indication on who typed what.