John838, I hadn't wondered about her "smile," but here is a refresher from early in the disappearance:
"Holloway was in the National Honor Society, studied Spanish and was a member of American Field Service, which works with foreign exchange students. Her participation may have been a reflection of her travels, which Twitty said included trips to Europe, Canada and some cruises.
"She was a member of the student government and sweated through long hours of practice as a member of the school dance team. But Holloway wasn't just about glitz: she also joined Natural Helpers, a peer support group, and other volunteer organizations.
"For all her activities and achievements, relatives described Holloway as having an almost childlike side, too.
"Natalee's naive. She hasn't dated a lot. She doesn't party a lot," said uncle Paul Reynolds. Holloway attends church regularly and wouldn't ever run away, he said.
"In the Mountain Brook yearbook, Holloway's senior quote came from the old Lynyrd Skynyrd song "Freebird." It says: "If I leave here tomorrow, would you still remember me? For I must be traveling on now, there's too many places I haven't seen."
She does sound very intrigued with travel and adventure -- as many young people do.
She sounds very caring and soft hearted. I love girls like that. May God Damn any one that took advantage of that but He knows it happens all the time. That may be the way they got to her.