Some people with autism have facial tics and "coughing" tics. Their tics happen even when they are not in the middle of speaking. The difference is, for us, facial tics or what looks like facial tics happen usually in the middle of speaking. Edit: [here's a video](https://www.youtube.com/watch?v=KNg2h3uiQKM) from someone with autism talking about his tics. I do some of his tics to get through blocks.