The only thing I took from Iowa is when someone says "thank you" I say "yup" instead of "you're welcome". Every once in a while I'll call soda POP despite myself. Oh god I actually miss the midwest....
I still say ehy and ya'll once in a while. And I have the highest Upper Midwestern score, so I guess there is a Michigan accent. I would be interested to see how MF and Moxie score on this portion.