Luke only smiled more in response to the feelings of confusion and then the amusement that followed. It wasn't like he was prying or even trying to spy, he was just good at sensing emotion and always had been.
He gestured for Finn to sit and did the same himself, pulling his seat in as he went. He might have looked boyish, but he sat with a calm kind of composure that not that many people his own age had. "You can set the books down for now. And -- Luke," he corrected. "Or Master Luke, if that's what you want." It wasn't really about the title so much as whether or not Finn felt he wanted to be trained, the title of Padawan himself. "Tell me about yourself, won't you? Also, coffee? Tea? If it depends on company, still, have you ever had Mountain Dew?" Look, Luke was just really kind of fond of strangely colored drinks.