How do I improve the fuel efficiency on my Audi A2?

I recently purchased an Audi A2 and have noticed that its fuel efficiency is not as good as I expected. Are there any tips or tricks to improve the fuel efficiency of my car?

Make sure to keep your tires properly inflated, as underinflated tires can decrease fuel efficiency.

Avoid aggressive driving and sudden accelerations, as this can use up more fuel than necessary.

Try to lighten your load by removing unnecessary items from your car, as a heavier car requires more fuel to move.