How do you get an air bubble from an iPod?

If you're question refers to a screen protector on your iPod, and there's a bubble between it and the screen, try using a hair dryer to heat the screen protector around the bubble, and try pushing the bubble to the nearest edge, using your thumb. If it's not too bad, that should get it out. Don't use anything like a key (I wouldn't even use plastic), you can scratch the screen protector and leave bad marks on it.