right and left

     In the United States and in many other countries, driving is done on the right side of the road. Walking is done on the right side of a sidewalk, aisle, or  hall. In some countries, such as England, driving is done on the left. Walking is also done on the left. "Right" and "left" countries seem to be scattered around the globe at random. While driving from a left country into a right country, or from a right to a left, there is a checkpoint where cars have to stop and change sides of the road, like a little traffic circle.
     Someone used to driving on the right may have trouble adjusting to driving on the left. Every time the new driver turns a corner, he may wind up in the wrong lane. Many visitors to foreign countries where driving is on the opposite side never attempt to drive--they just take cabs or trains.
      Walking may even be awkward. We are used to giving way to the right, but in countries where they drive on the left, they walk on the left as well, and give way to an oncoming person to the left.
     We also look for the driver on the right side of the road when we cross a street. In a country where they drive on the left, a visitor has to look in that direction before stepping into the street.
     If you think this sounds easy, get out some old toys, or print some paper cars and try it.