Tired of getting the “fine” answer when you ask how school went? Try asking them to sing a song about it. Encourage them to make up the song from scratch. If that doesn’t work, have them change the words to their favorite song melody or beat out a rhythm for them.
It may feel like pulling out teeth in the beginning, but you can always set an example by singing about how your own day went.
Try it out and let me know how it goes.