When I was little I would watch the news with the volume turned off, then I'd try to lip read. I found that I could do very well as long as I could guess the co

When I was little I would watch the news with the volume turned off, then I'd try to lip read. I found that I could do very well as long as I could guess the context (usually by guessing from the associated picture they'd show next to the person). Yours might be the same effect.