How do I use Photobooth to add snaphots to Google Drive?

First open or create the Drive folder in which your photos will be deposited. Have this folder open in a Chrome tab.

In this example, there is an empty folder titled "Photos from Photobooth tutorial.

Next, open Photobooth.

You may want to use an external camera, like a webcam, to avoid holding your laptop at weird angles to capture an image. If so, select the camera menu and select the camera you wish to use.

In this example the webcam has been enabled instead of the built in FaceTime camera.

Snap a picture in Photobooth. You will see it show up in the file tray under the active photo window.

In this example, the photo of red wires was taken and can be saved, deleted, or edited.

Drag your photo into the Google Drive folder open behind the Photobooth app.

In this example, the red wires photo is dragged from photobooth into the Google Drive folder.