Setting Your Chat Status
To change your status setting in Google Chat, click on the down arrow next to the current status indicator at the top of the Chat screen. In this case it shows a current status of "Active":

NOTE: If your Chat window is not full screen, you may just see the "indicator dot", without the status description.
When you click on the down arrow, you will get a menu to select a new status or to create a custom status. Select the status option to match your desired status.

NOTE: Be sure to make sure you don't inadvertently leave your stats set to "Do Not Disturb" or "Away" so that you don't miss important notifications.
