A study showed that people learn a language through the sensory processing rather than the movements of face and mouth. It is a little surprising because many English teachers teach me to pay attention to my mouth movements for good pronunciation. But according to this study, listening seems to be more important. What do you think about this? Controlling my mouth movements is hard for me because I only make slight movements when speaking my native language. I am not used to making large mouth movements when I speak. This relieved my worries a bit.