This chat app is limited to (20) simultaneous users.  Type in who you are in the 'Name' field at bottom of page. ex: DougReeves RV-6 Flying (TX).  Click on 'Chat here' to type in a message.  Press ENTER to post it.  To open a private tab (a private conversation with one other person), click on the user‘s name. To send a private message, simply type a message while in the tab and hit Enter.  Click on 'Chatters' down at the bottom to see who is online.