That’s because most of our stutters are psychological. We think we are incapable of making certain vocal sounds, so we hesitate. We have conditioned ourselves to hesitate our actions, and sometimes that seeps into other activities as well. I remember when I was in a pretty severe stuttering state, I was posing for a group photo and we were told to smile, I stuttered when trying to smile. Stuttering, I have learned, has little to do with speech, and more with our lack of confidence in our abilities.