It is surprisingly easy to arrive somewhere new and forget the one thing you meant to ask.
A short list helps. What you are hoping for. Anything that has worried you. Practical things like timing, cost and what happens afterwards.
A good conversation is two-sided. Bringing your questions is not being difficult; it is how you get useful answers.
Keep the list nearby and add to it as questions occur. It gives the conversation a useful place to begin.
