Speaking (n.) about something is always the Dasein speaking itself out, expressing itself as existent being-in-the-world.
Speaking (n.) is of itself a listening — a listening to the language we speak, not while but before we speak.
Speaking (n.) is totally different from employing language; common speech merely employs it, and that is precisely what makes it common.
Speaking (n.) is how we have a world together; it is mostly in talking with another about something that our being-in-the-world takes place.
Speaking (n.) never stops: we speak awake and in dreams, and even when we utter no word aloud but only listen, read, work or rest.
Speaking (n.) about the world is always speaking about oneself: every conversation carries the present's interpretation of itself.
Speaking (n.) is, at its most proper, a saying — a manifold showing of what obedient heeding of what appears lets be said; when we speak to a sick person's heart we make no object of him.