Liz smirks slightly at his silence and the way he then lapses back into lessons.  It fits him, using his learning to try and make sense of something as complex as relationships.  She listens to him talk, just happy to be with him.  When he pauses again, she asks "So the dopplegangers, their that thing that looked like Brian, right?  Is that one still out there, pretending to be him?  That would be really creepy if it were the case."  She thinks about the eerie creature and her brother meeting up, him able to see the wrongness now.  It wouldn't be a pleasant meeting.<br/><br/>"Do you do anything here other than study?  Do you ever go see the shows, or eat the foods or even just watch the people?  It seems like it'd be pretty lonely just being with books all day."