[vharuck]

Going by my poor Japanese listening skills and some interviews from documentaries I've seen, Japanese speakers mostly stick to common words and idioms in conversations. They also "over-explain" by repeating, rephrasing, or even reacting to their own points.

So, it's just like conversations in any language: basic, rambling, and emotive.

[fomine3]

Talk on documentary is tend to be like that. It's not general.