In my F 2016 BIO181 classes, I noticed several students checking email, texting, sleeping. Those students usually sat alone in the back of the room. I use “think-pair-share” activities to promote collaborative learning and communication, but this is challenging when disengaged students are spread out all over the classroom. To boost engagement, I established a seating policy mid-semester. All front seats must be filled first, and no one sits alone at a table. I asked students to get up and move, and late comers could not avoid being directed to open seats. Immediately, my classroom environment changed. We achieved 100% engagement, especially during classroom activities, and the policy raised expectation for students to come to class on time ready to work. But a more important outcome emanated – because learning partners were always changing students got to know each other, and they stayed in class (drop rate=10%, fail rate=5%). I implemented this policy at the beginning of the SP 2017 term, and though it is still early, I see my students talking to each other, working together, and everyone has been engaged from the get-go!