MY 100 WORDS----Listen

"Hey Fred. Nice car."

"Thanks Dave. I got it at Bill's Auto."
"Bill's Auto on Smith Street?"

I don't have to go further, do I? 

It’s not easy to write dialogue for radio. You have to use strong words to get humor or sales points across. 

So listen. Listen to how people speak. Listen on lines, at sporting events and at soccer games. People don't exchange information--- so don't make your characters do that.

Listen. Learn. Then write like people speak. The difference will astound you.

"Isn't that right Bill?"

"Absolutely Dave."

And stop using names...! More on that later.