For step 2 you must choose an audience not in your discourse community. No interview can be successful without some amount of preparation. Know the person you're going to talk to. Know enough about the topic to be able to ask the right questions, and consequently, impress upon the interviewee that you care enough to prepare. Your own anxiety will lesson the better prepared you are, but the preparation is a guideline, not a script.
Some people benefit from a tentative list of questions, others from some background material.
Make the appointment as convenient as possible for the interviewee. You are at their whim. While you should not go anywhere or schedule a time you're not comfortable with, you should bend over backwards to accommodate the schedule and preferences of the interviewee. Provide an Overview . If you want to use any recording device, ask for their permission, and then ask again while the tape is rolling so you have their permission on tape.