To use the voice chat you must download the HearMe plug-in.  If you have problems downloading the plug-in, go to the HearMe help link on the left.

If you do not have a microphone, you can still get in on the conversation - Just click on "Text Chat" to open the window that allows you to type your messages.

To change your name, or turn off voice presence, click on "Options".

You cannot boot people from this chat, but if they become bothersome, you can click on their name and click on Ignore.