You should have seen their faces when they were showing me their colorful grammar charts and their carefully handmade flash cards, and their statistics about learning vocabulary using apps, or even how they love to cook based on recipes in a foreign language.
Avreste dovuto vederli mentre mi mostravano le loro tabelle grammaticali colorate, le loro flaschcard fatte a mano e le loro statistiche sull'apprendimento del lessico con le app, o addirittura quanto adorano cucinare usando ricette scritte in altre lingue.