Answer:If someone is choking, the first step is to check if the person is conscious. If the person is conscious and able to breathe, try encouraging them to cough forcefully. If this does not work, perform abdominal thrusts (also known as Heimlich maneuver) by standing behind the person, placing your fist at the person's abdomen (below the ribcage) and performing a series of up and inward thrusts until the object is expelled from the airway.