green man with a strange looking goatee", there is  already a smudge in the dust on the chest of the statue. The scene  cuts to Riley, then back to the him and the statue. The statue now  has an even layer of undisturbed dust with no smudge. Riley then  hugs the statue and his cheek rests on the chest of the statue. He  is not shown moving away from the statue, but the smudge could have  only been left by his cheek.