"Do you really?" Lily laughed, but not in a way to show she was teasing him. "Is it to help you keep track of characters? I've done that before...especially for books like The Hobbit." There were always so many characters introduced that Lily sometimes had a hard time remembering who was who...especially if they popped up later on.
"He's very eccentric, but I enjoy him. His knowledge of Potions is so vast! I've really been enjoying the class." She knew she was in the minority of that as Potions tended to be the Slytherin's favorite subject. She didn't know if that was due to Slughorn being the Head of House or if there was an actual interest in the subject.
"Oh." It was fairly close to her own situation, but it seemed like he would at least have some introduction to magic; Lily could only imagine what it would be like, growing up and knowing that there was something better than the regular muggle life. Before she knew about it, she had been perfectly happy. Now, she was beyond thankful that she had been shown a door with another option to it.