Yahoo! Messenger allows you to add custom status messages to your webcam screen. A status message is a convenient way to let your contacts know what you're doing. 

To enter a custom webcam status message: 

1. From the Messenger menu, select My Webcam. The My Webcam window opens.
2. From the File menu, click Preferences.
3. Select Webcam Broadcast from the category list on the left.
4. Select the checkbox for When I show my webcam, change my status message to.
5. Type a custom webcam status message.
6. Click Apply.
7. Click OK.

Your custom status message will now appear next to your Yahoo! ID in other peoples' Messenger Lists.