Remember that quirky girl from Harry Potter Luna Lovegood? Personally I found the little thing adorable and the actress Evanna Lynch played it perfectly. Reminds me of this chick in high school who never really talked much, but oh man when she did the most random things would come out.
"I was playing the dirt yesterday and tasted the most peculiar thing"
there really isn't a proper response to hearing that in math class...there just isn't.