Interesting enough, the IO didn't really talked to me at all...he spoke to my wife (US Citizen) about how we met, where do we live, how long had we dated before I proposed to her, what are our future plans, her passport, new medical exam, copy of the lease with both of our names, copies of our joint filed taxes for the past 2 years, pictures of the wedding. To me he basically asked me to show him the I-94, the Visa and passport I used to entered the country, Yes or No questions, and that was it. The interview lasted 15 mins.