Selecting a photo for your user account picture
You can select a photo you’ve taken in Photo Booth to use as the picture for your user account which you see when you log in to Mac OS X. This photo will also replace the photo on your My Card in Address Book.
- In Photo Booth, click the thumbnail of the photo you want to use.
- Click the Account Picture button.
The Accounts pane of System Preferences opens showing your new user account picture.
To adjust the position and scale of the picture or select your previous picture, click the Edit button in Accounts preferences.