...you load a savegame and immediately press space twice trying to skip the load process.

(Actually happened to me.)

... you reach for your Tawny Owl instead of the coffee.

...you confuse your bartender when you challenge them to a game of Gwent.

(If you find a bartender that accepts and pulls out their cards, you have a great bar and I'm jealous.)

...whenever you want to write "contrast", you write "contract" instead.

(Happened, too.)

... your kid/s go missing and your reaction is, <shrug> "Less mouths to feed."

... you keep refilling all your drinks with strong alcohol everytime you sleep.

Same.

Your driving down the road and you point out the flowers and plants along side the road to your friend as "hey look, the Ginatis flowers are blooming, there's some virbenas, those beggartick blossoms look about ready". And your friend looks at your like your nuts (of course if he understands what your talking about, maybe he's played to much witcher 3 as well).

When you see a creature, monster or some other beastie on the web or other media and immediately think ( or say out loud ) "looks like witcher work to me"

... you get stopped for a traffic violation and make the Axii sign at the cop.