Maybe you see a plant you have to collect in game or a rock wall that looks different. What items have you caught out of the corner of your eye that you realized was just your brain so focused on looking for things in a game that you saw it IRL and made you double take?
Not exactly a double take, but sometimes when I play a lot of Assassin’s Creed I start subconsciously looking for good handholds on buildings in real life.
That 100% counts. I was thinking anytime the game perspective bleeds into real life.