Question: How do I reinflate a flat bicycle tire?
Option 0: Find the bicycle tire valve, and remove the cap from it. Using a pump, pump the tire with only a couple of pumps to refill the tire with air. Afterwards, remove the pump from the valve, and re-screw on the cap on the valve. Ensure the cap is not loose, and is properly fitted.
Option 1: Locate the valve of the flat bicycle tire and remove the cap from it. Use a bicycle pump and insert it into the valve, to pump the tire full of air. Ensure the tire is properly pumped to the correct tire pressure suggested by the tire type. Re-screw on the cap on the valve.
Answer: 1