That Eyebrow Thing

I can haz raised eyebrow. And short hair! | #hair #eyebrows #selfportrait #self #instagramography #ipodtouch #shorthair
Can you raise one eyebrow? Which? Or, like Roger Moore (“My acting range has always been something between the two extremes of ‘raises left eyebrow’ and ‘raises right eyebrow.'”), can you raise either, independently of the other?