Luke almost breathed a little sigh of relief. Oh good. He could tell from the tone of Mao's voice that he was probably just as nervous as Luke was, but Luke was positive that he was hiding it better than Mao. His awkwardness was kind of adorable, actually. In a 'high-school-girl-is-talking-to-the-guy-she-has-a-crush-on kind of way.
"Oh, not much," Luke returned coolly. "I'm just drawing." He glanced down at his sketch and didn't add "you". It was a rather good picture, actually. It wasn't finished yet, but Luke was pretty sure he'd captured Mao's expression, especially in the little pout in his lips.