Don't just do this for the sake of impressing your instructor or examiner. You should recite it in your head on solo sorties as well. When you progress to flying a twin, it becomes even more important that you memorise it for your OWN benefit. In some cases if the worst case scenario really does occur and you panic , its likely subconciously you will take the action required that you've drilled into your head from the takeoff briefing.
Good luck,
S744