Here are four simple ways to say it, written for a 12-year-old:
- Press START first, then press PLAY. PLAY won’t do anything until START is pressed.
- You must press START before you press PLAY; PLAY won’t work unless START is on.
- First activate the START button. The PLAY button will stay inactive until START is pressed.
- Hit START first, then hit PLAY. PLAY won’t work until START has been pressed.