All of us are given only one life, and there is no rehearsal to life.

Plan that response and rehearse it.

If you are going to pay that much, find someone local that can show you everything you need in the area you are working in.Second - Most of the Gurus have a slick, well rehearsed pitch.

By mentally rehearsing different scenarios and challenges, you can develop strategies and contingency plans to overcome setbacks.

It will sound rehearsed and make you sound like a telemarketer.

A person can minimize mistakes by properly preparing, paying attention to details, and rehearsing every possible worst case scenario (like you do with attorneys in a negotiation), and asking for help.  

Rehearse your script aloud before you begin calling each and every time.