I emailed a professor at a school I am applying to, outlining my research interests, two specific projects proposals, and how they align with his research. I let him know that I am applying and I'd be interested in working together and chatting if he's taking students. He said he is taking students and asked if I'd like to set up some time to talk.

What do I talk about?

Here are the main topics regarding his research I can think of:

* How did you come to your line of research?
* What topics do you feel are under-explored in our sub-area?
* What projects are you most actively working on now?

Should I also ask for feedback on my proposals, or would that sound stupid?

To clarify, I closed my email with something like: If you are looking for graduate students and feel our interests align, I'd like to discuss opportunities for working together.