It's kind of funny the way adults melt down and start to goo goo when talking with babies, but the fact is, this seems to be an intuitive or instinctual way of relating to the baby. It's not that our natural way of speaking is "goo goo," but we're thinking of the audience. And this is so built-in that it would be strange to see an adult approach a baby and not change his tone or language at all.
We tend to do the same thing with kids too. Even if we speak to them respectfully and honestly, there are some things we talk with them about and some we perhaps do not; and we adapt how we tell them based on their use of language, their understanding of the world, etc.
So what about your business? Are you thinking about your audience when you choose your words, when you think about how to explain things, share things, sell things? Do you want to exude a corporate facade or a personal touch? Are you trying to convey fun, sensitivity, seriousness? Why? And how?
Why is your first question. It asks who your audience is and what you offer them. How asks how you share that with them.