Reporting Fouls In The Right Spot?

[IdahoRef]

I'm a first year official and have been told (as well as I have read in the book) that we are to report fouls within the rectangular area diagramed in the book. However, I see few officials that do! I've had some guys tell me "oh, you don't need to do that, just report from across the court and get on with the game." So, what SHOULD I do if I want to do it right? Thanks