I always watch K-Dramas and moviesb with subtitle. In that way, you are able to hear how they talk as well as their intonations when speaking. If you have internet connection, you can also pause the drama/movie to look for the exact translation of different words you would hear on the show.
So that's our tip for today. It really need a bunch of practice and patience but in the end, you're able to do it! 알았어?