Pay attention to how your interviewees answer your questions.
Their body language will tell you what they really mean with their words.
Use the Body Language
Checklist by looking at the video of a model interview conducted
by two Dutch students with an British man they found in Amsterdam.
The first question the students asked was: "How proud are
you to be a British citizen? The Brit makes a very long answer,
that can be divided into three parts, as indicated by his oral
signals (words, exhalations, sighs...).