Honestly I'm glad I'm not the only one who physically moves involuntarily. I do this thing where if I'm trying to hide my blocking, I'll either pretend to wipe my nose or look at something completely unrelated. For example, if a dog is walking across the street and I'm blocking on a word, I'll turn my head and watch the dog as if it's interrupting what I'm saying LMAO. I definitely don't make myself seem sane.