If you want to ’activate’ your students, one way will be to send them on a secret mission, one that generates yet another opportunity for them to polish their English:) Have a look at the two secret mission task templates I created for my students: task cards with my ideas for various tasks for students to complete during a class, and Blank ones, that could be filled in with your creative ideas! Why would you do them? To increase learning, to boost focus, to introduce a spirit of gamification that never fails to motivate, and finally, to have fun and give out nice rewards:) Enjoy!