You can give students a Thinkmark, related to the reading lesson, and ask them to use when they read their self-selected book during class or at home. Then they can bring back their Thinkmark and share it with a partner during the next day.
I've also used Thinkmarks as an exit slip to get an idea of the students understanding of a reading skill or strategy.
You can download a free sample of my Reading Thinkmarks and begin using them in your classroom right away! (Click on image below)