1) Have iPods in your classroom. Have enough for every child to have their own. (Very helpful if your class size is 18 or less.)
2) Use creepy and/or funny voices while you're teaching to a) get the point across and b) keep the kids so interested because they want to know what you will do next.
3) Randomly start dancing while listening to a voice mail that contains awesome news while your little friends (who are supposed to be working) are watching. You'll know when they noticed because you'll hear a chorus of giggles rise up behind you.
4) Be firm, fair and consistent.
5) Be fabulous.