Students in my 7/8 ELA class have been paring up (different partner each day) to read chapters of Buddy Not Buddy. After 10 minutes of reading the partners each get 45 secs (teacher timed) to share what they read. Reading continues, but the time to read (10 minutes) decrease by one minute each time, until all pairs finished the chapters. Most pairs are usually finished after the second read (9 minutes). A few pairs will need the additional 8, but not many.
The first day we did this I was very surprised how on task students were. The second day I thought students would be disappointed with having to switch partners, but they weren't. They were just as focused as the first day. They third day went well too. I think it helped that I didn't start this until they were hooked on the book.