before making a telephone call do you reherse what you are going to say?

no because on my opinion not others,mine,i think is a wasting of time.
other reason because it depends with what the reason call is and it always depends on who i am going to call.
may be I have do it but not that I remember but may be I did it.
i will do it just if I call a man well a boy.
finally it may be work for an especial case.