To show your avatar in the Messenger List and IM conversations for Yahoo! Messenger 6.0 and later:

1. In Yahoo! Messenger, go to the Messenger menu and select "My Display Image."
2. Click "Share My Avatar."
3. Click "OK."

To see your friends' avatars and display images in your own Messenger List:

1. In Yahoo! Messenger, go to the Messenger menu and select "Preferences."
2. Check the box next to "Show other people's display images on my Messenger List."
3. Click "OK."

Learn more about displaying avatars in Yahoo! Messenger.