Try to listen to audio books. Today it is very popular that books are read loud on CD by popular persons for example movie actors. You can buy the CD and the book and then you listen to it and at the same time read it loud also. To begin easy you can start with books for children for example fairy tales.
Audio chat is also possible but take care if your partner can speak really good and doesn´t have any kind of special dialect. So that he/she speaks the true form of the language.
And the best thing is of course to practise it as often as you can to achieve good skills and to settle them so you will not forget them after some time of learning.