Be direct but not mean. In the early stages, you’re mostly looking for substantive feedback about the story, the structure, and what you have to say. As the talk development progresses, you should include more asks about presentation skills, especially with regards to tone and speed. Remembering a core tenet of A-Ha! is that the audience pays attention when needed, you can also inquire about their attention level as you progress into a more repeatable phase. And slides should be evaluated at least once for clarity and impact, though if you’ve done visuals a few times, and follow the advice in this book, you probably won’t need much input there.