Make your interviewee comfortable. Small talk helps!
Bring recording equipment.
Pay attention!
Come to the interview prepared.
Push your interviewee to answer questions they do not want to answer.
Be rigid. Continue on conversations of interest and ask questions.
Allow your interviewee to pursue conversations that are off topic.
Driscoll, D. L. & Brizee, A. "Interviewing." Purdue Online Writing Lab. Purdue University. Web. 6 December 2015. https://owl.english.purdue.edu/owl/resource/559/04/