When you think "What's wrong?" as you're looking around in meatspace and lock icons don't offer themselves (wayyyy too much Rift flying!)
When you see "Lane Shift Ahead" on the freeway and automattically floor the loud pedal so you're ready to jump. Lane shift, frame shift.... who can tell?
You put something heavy in the boot and think "There goes my jump-range...." (Yes, I know I'm mixing US and UK terms... brit in San Francisco, c'est la vie...)
You crane your head as you take a corner in your car and grin like a loon because it does that in the game, too!
Whenever you're cut off by a Beemer or a Merc on the road, your brain makes the "Hardpoints Deploying" sound.
You look at your Google News Feed and think "Where's the drokking Galnet section?"
And lastly:
Having blown a Fat Wad o' Real Life Cash on a new joystick and an Oculus Rift during the course of the year, your christmas present to yourself is a big, squishy new office-chair with lots of padding so you can sit on your duff all through the holidays, grinding rares and spanking Wanteds without getting a numb backside!