Like many other illustrators, I use Apple's 'Photo booth' app to take reference pictures for drawings I want to do (you will have seen many of them as part of my visual diary on this blog). I also use it to try out new hairstyles. Sometimes human and dog friends make cameo appearances.
Looking for a particular reference shot this evening, I was rapidly flicking through the library, and it amused me so much, I decided to make a GIF.
You should wait until it's fully loaded before watching because otherwise it might freeze for ages on one shot and you'll have to endure me pulling a really horrible face.