Also, if you [have/know somone with] a fairly "official-looking" camera with an externally attachable interview-style microphone, then you can go around and do some street spots with less awkwardness. When people see somone talking to a person on the street like that, they get the impression it's one-on-one. And if you approach someone, they'll be more likely to be comfortable with an interview-style conversation.

This sounds accurate.