To All: 

go to: 

press the log in button then the sign up button. 

once you successfully sign up go to the log in button. 

once you log in hit the edit profile button. 

You'll see the familiar icon of a face outline with a question mark, click on it, 

navigate to your picture and choose. 

log out. 

You can go to: 

go to the lower right part of the chat box, set name, log in... Done! 

Hope this helps 

ps: you can log on to the chat room anytime day or night to do a test