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.
Trebali ste im vidjeti lica dok su mi pokazivali  šarene gramatičke bilješke i pažljivo ispisane memorijske kartice, i njihove statistike o učenju vokabulara koristeći aplikacije, ili čak kako vole kuhati  prema receptima na stranom jeziku.