What is the most efficient way to adjust the tire pressure on an Audi A1?

I recently got an Audi A1 and I noticed that the tire pressure was a bit off. How can I efficiently adjust the tire pressure without damaging the tires?

The best way to adjust tire pressure on an Audi A1 is to first check the recommended pressure for your specific model and tire type. Using a tire gauge, measure the current pressure and compare it to the recommended pressure. If it is too low, use an air compressor to fill it to the correct level. If it is too high, use the tip of a pen to depress the metal stem in the center of the valve and release some of the air.