During an interview people will bring up things they strongly believe in
(the more peculiar, the better).
Take note of these things.
These are the buttons to push to provoke an interesting conversation.
Take note of what someone likes or doesn't like.
Take note of what makes them perk up, or what bores them.
A good interview doesn't happen from reading a list of questions.
The best interviews have a general direction maintained by the (duh) director, the keeping of the subject jazzed during the conversation, and the asking of strategic follow-up questions about the things that make them excited (or anger or depress them).