How can I optimize fuel efficiency on my Kia Picanto?

I recently bought a Kia Picanto and was wondering how I can improve its fuel efficiency. Any tips or advice would be greatly appreciated.

The first thing you can do is keep your tires properly inflated. Under-inflated tires can decrease fuel efficiency by up to 3%.

Another tip is to avoid aggressive driving. Rapid acceleration and braking can waste fuel and decrease efficiency.

Make sure to regularly change your air filter. A dirty air filter can decrease fuel efficiency by up to 10%.