For my last C4K I commented on Christopher and Tabatha's blog's. Christopher was older than most of the kids I comment for and his post was about Napoleon. I told him that I've always been interested in Napoleon, and that I thought his post was very well written.
Tabatha's post was a reflection on a book she had read. The book was about a girl who was starting high school. I told her I think all girls are a little afraid of starting their ninth grade year, and also that her post made me want to find this book and read it.