Compared to other chat programs, Facebook Chat is the stripped down, no-frills model. Assuming one of your friends is logged in and online (more about the online thing in a minute), initiating a chat session is a breeze:
1. Click Chat (in the lower-right corner of any Facebook screen). A menu appears listing the names of any friends who are online.
2. Click the name of the friend you want to engage in a chat session. This displays a chat box.
3. Type a message and press Enter on your keyboard. Your message pops up in the chat box. Assuming your friend responds, his message pops up right below yours.
Chat on Facebook with your friends. ...