I cringe a lot.
What has made you cringe?
I have had the most unexpected response, the person I cringed to actually thanked me for my opinion.
That makes me think your behavior was a bit inappropriate. If they're thanking you, that must value your opinion.
I don't care anymore, I would rather cringe than watch all that shit
You can keep your movements to yourself though. There is a more tactful way to tell someone you don't like something. If you can't control yourself, you might want to seek professional help.