OR
While on a chat screen, press the Menu Key and touch End chat.
Changing and monitoring Online Status
Icons in Google Talk, Gmail, Google Maps, and other applications indicate you and your
friends' Google Talk status.
Your Google Talk Status:
Signed into Google Talk and unavailable to chat
Signed into Google Talk and available to chat
Signed into Google Talk but too busy to chat
Busy but available to chat.
Invisible: Signed into Google Talk but appear signed out to others
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