When entering a street from a private alley or driveway you must?

When entering a street from a private alley or driveway, you must yield to pedestrians and other vehicles already on the street.

You can drink laxative, or  do this exercise when you are sitting in the bathroom on the toilet. to relieve  constipation  fast or in about 1 minute, pinch your nose after your usual exhalation. start holding your breath. but do not mouth breath during this just hold your breath.