I have a secret stim I can only do when I’m alone that to an onlooker would look like high-speed pacing. I find a route and just go. I don’t even need that much room

i actually do this same thing. usually only when im alone as well, or if im on an important phone call

Personally, I find pacing and/or keeping my hands busy to be quite helpful at times when I’m talking with people, as it keeps my body occupied so my brain can focus on talking. Only issue I struggle with is when I talk my eyes tend to completely zone out so I have a hard time with eye contact