Baby's face will do random things at random times. This may include blinking, eyes flickering, and (my personal favorite) Face plates shifting.
In case you haven't seen it yet, here is one of my original concepts for my stylized Circus Baby model: http://botconboy.deviantart.com/art/Circus-Baby-Sketches-1-Sister-Location-651496644 Yet another OpenGL Render by yours truly. So after many failed attempts to make a head model that could resemble my drawing, I was finally able to create, and settle on this. This, by far, is the most difficult, tedious, and time consuming character head I've made for a FNaF Character. And I've gotta say, I'm pretty happy with how it turned out so far. But now I want your opinion. How do you think I did? Good? Bad? Somewhere in the middle? Give me feedback with it too. Thanks! Model, Animation, Programming, Rigging, Textures, Materials, and Drawing are done by me. Character was created by Scott Cawthon