What do you do when your iPod doesn't turn on?

Check the hold button. If hold is on, turn it off. If hold is off and it won't turn on, plug it into the computer, as it may be out of battery power. If you plug it into a computer that is on and the iPod still won't turn on, it is likely that the ipod is broken, you should call Apple customer service to discuss repairing or replacing your ipod.