You should receive a pop-up window that allows you to log in under whatever name you want. you can close this and the message that appears after it if you do not want to log in. The settings button will also do this, or allow you to activate the whitebord feature.
At least for now this room will only accommodate 4 users. In the future I would like this to be a place for asking quick questions. If it is working go ahead and use it, but please no bad language or fighting.