[header] How to ask interview questions [title] Make the interview seem casual. [step] To set your respondent at ease, make the interview seem as casual as possible. Beforehand, refer to the interview as an opportunity for you to talk with them (as opposed to interviewing them), which will put less pressure on them as the designated subject. 
Be friendly and kind, and allow them to see any nervousness you may be feeling as well. [substeps] Before starting the actual interview, engage your interview subject in casual small talk to break the ice.