Good luck, don't worry about it... if you are the client go with some sort of real experience... that really gives some perspective on what people feel when they go to the first interviews... if you are the therapist then there are lots of guidelines you can rely on...
if you havent read "The Brief Wondrous Life of Oscar Wao" by Junot Daz, i really think you should.
i really loved the book. and i was really touched at the end
b'atzlaha