-Stepping aside for an elderly couple to go first
-Breaking a thread with your teeth instead of using scissors or a blade
-Cupping your hand around a small flame to protect it from a draft
-Automatically calling out the name of animals you see to alert the other humans (think when someone says "cows" or "horses" in the car, or looking out a window and saying "squirrel")
-Large groups of people all singing together
-Giving your animal companion the plate/bowl to lick once you're done with your food
-Pouring your loved one's drink before your own