How should I pray?

At the beginning of the video below Ravi Zacharias tells a story of a boy who wants a new bicycle. He watched Christian tv to learn how to pray. The next morning he prayed this (having watched a high church service),

“Lord, if it is in Your Sovereign will and in Your Eternal plan that I can get myself a bicycle – in Your time and according to Your will – would you please get me a bicycle In Jesus name I pray. Amen.”

No bicycle arrived, so the next day, having watched more Christian tv (prosperity gospel this time), he prayed,

“Lord, I declare my need for a bicycle! And I declare that it will be a nice blue-colored bicycle and delivered to my home within 24 hours. I lay claim to it, Amen!”

Following this his mother saw him walk off into the woods with a statue of the Virgin Mary. He then prayed,

“Dear Jesus, if you ever want to see your mother again…”

I wonder how you pray?