Job interview in Germany

Job interview in German. How to prepare for the job interview in German? What do you have to keep in mind? What are the best techniques? Here are some ideas: 

- your presentation must be focused (fokussiert)
- show that you have concrete goals in your life ( konkrete Ziele) 
- show you have the passion (die Leidenschaft)
- show you have passion and love for details (Leidenschaft und Liebe zum Detail)

What do you think? 

What is the most important things during the job interview in Germany?