Initially, it is explained what an animated GIF is: a series of frames that are shown in sequence, and are looped 'forever'. There is an example of one of them in the background, and it is stated that it was created in around a minute, using nothing else than a webcam and a free software, found at TagJag.
The software is shown. There is a live preview of the webcam, and some options can be configured there; the image size, for example. A small image size is selected, and the creation of the frames of the GIF is started: two photographs are taken with the camera using the software. Then, both are put one after another, and the result is looped.
That way, a simple animated GIF is made.