What are the best ways to maintain the fuel efficiency of a Kia Picanto?

I recently bought a Kia Picanto and I want to make sure it stays fuel efficient. What are some tips and tricks to maintain its fuel efficiency?

Regularly check and change the air filter to improve engine performance.

Make sure your tires are properly inflated and aligned to reduce resistance and improve fuel economy.

Avoid excessive idling and use cruise control on the highway to maintain a steady speed.