All kids dabble in stretching the truth or outright lying, and of course it's to their benefit to learn that lies have consequences. To be clear, all kids lie at one point or another. I know you may be thinking yours has never lied to you, but if so you're in La-la-land. Once you've come to grips with this truth keep reading.
Dress nicely. Be polite. Speak with confidence. You already know this advice for doing well on your job interview. But what you might not have considered is talking about your character. I guarantee that no other candidate will be discussing character, yet it is this element that distinguishes a competent employee from a truly stellar one.