If you’re not sure whether something is happy talk, there’s one sure-fire test: if you listen very closely while you’re reading it, you can actually hear a tiny voice in the back of your head saying „Blah blah blah blah blah….“
A lot of happy talk is the kind of self-congratulatory promotional writing that you find in badly written brochures. Unlike good promotional copy, it conveys no useful information, and focuses on saying how great we are, as opposed to delineating what makes us great.