To make my classes more interesting, I always try to include movie quotes. They show a cultural perspective, which is imperative to the language. They are also fun conversation-starters.
I am a native English speaker, however I did learn Spanish and I think this advice is universal. I listened to many podcasts to improve my listening and understanding. I also practiced a lot with natives. I wish I had taken advantage of the teachers on the website and booked a couple of lessons. The podcasts were interesting. I also used Duolingo a lot and watched TV in the target language.
Good luck and happy learning!