The experience will depend upon the amount of time and research you put into making the choice of the provider. If your preparation has been good then you only need to show up well groomed and behave like a gentleman during the session. A highly rated lady has dealt with first timers and should be able to put you at ease and allow events to flow naturally.

on a real date.  Be clean, dress neatly, etc. to make an impression.  The only difference is that you will be crossing the goalline at least once--sometimes, MSOG.  A few days afterwards, write a reveiw so we know how your experience went.