I count things.
Every time someone goes up the stairs, I involuntarily count their steps. There are usually fourteen.
There are 26 stars arched over the Paramount mountain. That was a hard one, cuz theys in motion. And only on the screen for a few seconds. So my solution? Started at the stop and counted on side of the arch: 13.
When someone is pounding a hammer or swinging an axe, I have to concentrate not to count the blows. My usual technique is to count “3,6,2,7 . . .” until I have no hope of keeping an accurate count, then I can let it go.
I often miss leading actor moments, because I obsessively scan every shot for details: what’re the books on the shelves behind him; are those plants real or fake; what does that plant’s species tell me about where this was filmed?
This is weird because I’m OCD IRL; only when watching movies.