I've thought about doing this and wondered the same question -
I don't know how many mini-dates you have (I think it's usually eight) but what I would do is come up with a few unique questions to ask -
You might want to check the main page for an article about the top 10 questions to ask a woman on a first date -
one of my favorites is, "what's the one thing men don;t understand about women that they should?".
That is a very different type of question to ask than the usual "what do you do? where are you from originally" etc, etc.
Also it subtely hints that you are qualifying her.
Basically just have fun and go with the flow.
Good Luck and be sure to post on your results.