I was a classroom teacher. Now I train teachers in reading! I love it. How do you make it more interesting? First, take some time to understand what reading is ...... reading is phonics, vocabulary, fluency, comprehension and writing helps us to communicate what we learn from reading. After you have a good understanding of what reading is, then you can learn about how to make it interesting. Teachers should only lecture a little bit - hands on activities where I can apply what I know are always more engaging.
This article has activies for Preschool through grade 6: http://www.readingrockets.org/article/25-activities-reading-and-writing-fun
I bet you can adapt some of these ideas for older students.