While driving your car, you put your arm on the window sill and wave your hand and blow your horn to all kids standing on the street.
Your wife opens her wallet to show the relatives photos of the children while you open your wallet to show them your latest rail photos from last weeks fan trip.
When you end every phone conversation with "Roger".
You curse the dispatcher when you're held up in traffic.
When you blow your horn two longs, a short, and a long through every intersection.
