To develop this line of thought a bit further: can you describe how to perform instinctual behaviour such as walking? It's just something that unfolds and develops. One may have to relearn how to walk if you are damaged, and there are physical therapists who can help you with that, and coaches that can help improve your walking and bring it more into consciousness, but the actual act of walking is so complex that the conscious mind will probably become overwhelmed trying to manage all of the factors involved. Once you "know" how to walk, you can do it, and you know you can do it, and you can recognize when you are doing it, but as to how--that is a bit more difficult, for sure.