Step1
Ask for a block of time with the person you plan to interview in advance. Make sure it is long enough for you to learn what you need to know. Most significant interviews with primary sources take at least an hour.
Step2
Prepare by reading everything you can on your subject and the person you are interviewing.
Step3
Break the ice. Start by making some sort of friendly conversation, like "Are you from this area originally?" Get the person talking about something, anything really. Then turn the crank.
Step4
Quickly go through personal mileposts, to get a sense of where your interview subject is coming from. Find out where that person went to school, what kind of family is in the area, job history, what important relationships they have in the community. This is still warming the person up, but it's also helping you better understand the perspective from which your information is coming. Get to know the person a bit.
Step5
Get down to business by making sure you have the person's name and title spelled correctly. That signals it's time for the meat of the interview to begin.
Step6
Order your questions from the point in which you want to start to the end, where you want to finish, in chronological order to make sure you understand the progression of what is happening.
Step7
Ask for every detail. None are too small--addresses, names, ages, sizes, colors. It all could come into play when writing, so learn it now, start thinking about the complexities of what you will write, and the connections will come into focus.
Step8
Look, listen, feel, smell and touch the scene in which you are in. Any sensory details here that could make your story more interesting?
Step9
Don't forget to repeatedly ask "Why?" Like a small child, make sure you understand every single thing that is being told to you in perfect progression.
Step10
Make sure you have contact information, preferably a cellphone number, in which you can call back quickly for any last-minute details.