Here is a short list of the controls within chat and what they do.
Emoticons: Choose between multiple "smilies" to insert into your chat message.
Ring Bell: Rings a bell to grab everyone's attention.
Text Style: Change the font, color and size of your text.
Avatars: Update your look by choosing one of several pre-designed avatars.
Sounds: Use different sound effects, or disable sounds completely.
Games: Play one of several preloaded flash games. Opens in a new window.
Image Share: Upload an image to share with the group! GIF or JPEG only.
Transcripts: Load your chat transcript into a new browser window.
Help: Opens the help file in a new browser window.
View Profile: Click on a member's name to view their profile in a new browser window.
Whisper: Enter a username to whisper with them. To return to regular chat, remove the username from the box.