Lily noticed the instant James entered the library, but she pretended not to, instead appearing to be engrossed in her book.
"Oh, hey James!" she said brightly, moving her books to make room for him at the table. "I'm surprised you didn't get lost on the way here. Have you ever even been inside the library?"
I am going to make a conscious effort NOT to flirt with him, she told herself sternly. No good can come of a relationship with James, so you'd better stop leading him on, Evans.