It's an illusion, you can control which way she spins. Turn your head to the right and cover your right eye, then to the left and cover your left eye. If you time it right you can make her move her leg from side to side without going all the way round! You'll looks stupid though, so don't do it at work.
What a stupid comment. Maybe that's just the way he looks. Maybe he just doesn't like having his picture taken or he just worked a night shift? And why do assume he talks like that? He's English.
http://www.youtube.com/watch?v=-B_FQKHQDYk