"It's about WHAT we say, not HOW we say it" Myth or fact?

"It's about WHAT we say, not HOW we say it" Myth or fact? I think there are still moments when how we say something doesn’t come across — and that can have real consequences. We shouldn't ignore this fact. For some PWS this may occur more significantly in there lives, and for them the statement might as well be a myth. This may be important for future research studies!