After working on activities in small groups, I ask the class to clean up. I survey the class and decide to give them three minutes. I announce that they have three minutes, set the timer on my phone so they can see it, and start helping students get started cleaning up.
I see Martin start cleaning up his game carefully and putting it away. I announce "Martin has started cleaning up. Great job listening Martin. Who else is starting to clean up?" We've been working on listening to instructions, acting on them quickly, and staying focused on cleaning up until it's all finished.
Once everything is cleaned up and the class has regrouped, I highlight again that Martin did an excellent job cleaning up. "Martin, great job getting started cleaning up when I asked you. Does anyone remember what makes cleaning up great instead of just good?" We review that I only had to ask once, Martin started cleaning up quickly, and he remembered to make sure everything was cleaned up.