I can think of many things... but it'd likely be the fact that I use video game analogies for describing RL things, that I once while I couldn't sleep plotted out the fastest way to walk across two randomly chosen zones in WoW in my head, that I keep quoting things like "I am the Warchief", "Speak, fool!", "We will do what we must... but we'll do it for Aiur, not you" and the like ALL THE TIME (to the point that my friends during my exchange year started calling me Warchief because I said that I was that so often...) etc etc etc etc etc.
I've also often given thoughts to how to model an average house in a square-grid based 1st person dungeon crawler, and thus get annoyed when a room is too large or weirdly shaped (or small) to be able to accurately render. And other things like that.
Oh, and of course the constant threat of fireballing annoying people or blasting them into walls, wishing I could use Fast Travel or Teleport when I'm late for school, yelling "YOU HAVE NO CHANCE TO SURVIVE MAKE YOUR TIME!" when upset at someone or just generally wondering what life would be like if you could fly, throw fireballs or turn invisible at whim, and how to procure a robe and wizard hat and not make myself look absolutely ridiculous whilst wearing them to school. It's little things like that that make my life good.
(And, of course, exclaiming "you critically fail your perception/Dodge/Make Dinner roll" whenever someone doesn't notice something obvious, fails to move aside for something equally obvious, or manages to set the frying pan on fire. That last thing only happened once, but it was a well-time happening

)