If you are wondering what style you are going to have, assume in the beginning you will pretty well not have a good style.
What we all need to know is...how do I have a coaching conversation? Let alone, how do I bring style to it?
You don't need to be worried about what your clients will be thinking your coaching style is or you at all because they will be focused on themselves and you will that space. Until you've done that, you will fill that space with empathy, with presence, with just being with them, with sitting with them, whatever they are going through with.
You will eventually bring a directness, because you will be trained in it, you will bring a directness that will free them from the poverty of their minds.