I was watching a scene on TV the other day, but with the sound on mute, and my experience got me to thinking about non-auditory language processing.

Although I cannot interpret everything someone says based on lip reading, I can do a bit of it, and I've noticed that when I comprehend what is being said, there is no conscious process of "hmmmm ... the mouth shaped x way, so he said so-and-so ..."; rather, I "hear" what is being said immediately, just as if it had been uttered, and the words vocalize in my head just if the sounds had been uttered.

It fascinates me to have such a concrete example of the language processing of my brain, separate from auditory processing, and I am now wondering if you all have had similar experiences.