He gave him a light smirk as he lifted a finger as if to make a point or pause him “Ah but Master you never liked things so easy” Then he leaned forward on the console staring at him across it. The cheeky Time Lord seemed to be up to something as his mouth pull itself upwards in the form of a grin. The grin that set across his lips could be called devious if the Doctor was truly capable of being that. Perhaps he was playing a game with the Master or he was just being unpredictable “… there is no challenge in easy is there? You have what you want yet it is way too simple…the chase is always much more fun Master” Oh that was rather feisty of the Time Lord to say such thing but he always seemed quite impudent if not loopy as well. He gave the impression that he was quite out of his mind as he continued to grin at him.