What is the most efficient way to maintain the fuel efficiency of a Kia Stonic?

I just bought a Kia Stonic and I want to make sure I take care of its fuel efficiency. What are some tips and tricks to do so?

Regularly check and replace your car's air filter to ensure proper airflow and fuel mixture.

Make sure your tires are properly inflated to reduce resistance and improve gas mileage.

Avoid aggressive driving and maintain a steady speed while on the road.