Movies Trivia: In Star Wars: A New Hope, what species walks single-file, to hide their numbers?

I'll admit it: I'm a Star Wars geek.  I grew up watching the movies over and over again, reading the books, the whole nine yards.  If you are a Star Wars fan, you will without a doubt appreciate this question: off of Pocket Trivia: Movies Trivia - In Star Wars: A New Hope, what species walks single-file, to hide their numbers?  Is the answer Storm Troopers, Ewoks, Sand People or Jawas?

Star Wars nerds rejoice!  The answer is Sand People.  This factoid is mentioned after the Jawas that sold Obi-Wan and Luke the droids (C3PO and R2-D2) are killed by Storm Troopers.

By the way, in the new, blue ray edition of Star Wars, Ewoks blink, apparently.  Go figure.