Celebrity·Posted on Nov 5, 2013Cobie Smulders Gives A Lesson On How To Be Courteous On "Sesame Street"Because this is apparently a foreign concept to Grover.by Whitney JeffersonBuzzFeed StaffLinkFacebookPinterestTwitterMail Tap to play GIF Tap to play GIF Tap to play GIF Tap to play GIF View this video on YouTube