When I'm at the shooting range and see a HUD, ammo count, recital, and target health.
When I feel drowsy in class and open my backpack to drink a green mountain dew (stamina pot). Same goes for blue (mana) and red dew's (health).
When I complete something hard and hear the FF victory theme...I also have that as a ringtone...
When I look at a map and try to fast travel.
I go on late night snack runs to a gas station and find myself hiding in shadows when people come by...and seeing the stealth meter doesn't help either.
When I was looking at jewelery as a gift for valentines day and saw item name, price, durability, weight, and item description. Has happened to other stuff as well...
When I wake up and try to check if my skill training for a course subject will finish in time for class (EVE Online reference).