Not sure if this will help but for me, when I am having trouble figuring out what to talk about or how, I write.
I just start with what comes to mind first and let it go. I don't worry about it sounding elegant or thoughtful, it becomes a stream of consciousness thing. When I'm done, for the moment, I can read back over what I've written and usually an order or pattern emerges over how to approach it. Once I have that, I list the details then write again trying to be more elegant and tactful.
It helps me to compose my thoughts so when I talk about something I don't wander all over a bunch of topics and end up not making much sense or having any real affect. It has helped me loads in talking with my WH since the A.