I'm glad the course seems designed around this consideration. It's goal-oriented: talk about everyday human things, clothes, weather, food, family. It's never been helpful for me to memorise vocabulary lists without a context to say them in. Instead, putting myself into situations where certain things must be said or understood greatly improved my competence.
After a while, your language instinct kicks in and you start to generate your own internal rules for the language, which will approximate or match the rules that native speakers have internalised.
I suppose this is can all summarised as, well duh, of course immersion works, but I wanted to say it anyway.