How do you get back a photo from photo booth?

Clicking the camera button in the middle will return you to the live camera view in Photobooth.

In your FaceBook account photo upload option select the Photo Booth folder inside the Pictures folder which is where Photo Booth stores your creations.

Photo Booth is located in the Applications folder in Mac OS X.

Finder > Applications > Photo booth. If the application is not in the Application Folder, you can search for it. In Spotlight: Photo Booth The top hit should be the application. If you select...

The plural form photos is an exception to the rule that words which end with -o preceeded by a consonant have -es added to create the plural form.