he could tell a great deal from an object when he allowed himself to handle it slowly ; if he asked questions of his power - that is , tried to direct it - he could receive even more . my guess is you 're a practical joker . our walk was quiet and uncomfortable . well , i kept them in my office as i always do . `` do n't try to tell me how to raise my baby sister . '' i turned in luke 's arm and lifted my eyes to his . 