If you want to improve your speaking skills you should get your nose out of the books and start to TALK! This is easier said than done, because you might be feeling insecure about your proficiency, or once you start talking to a Dutch, he or she replies in English. Most of your friends might be internationals and also at work or at university people mainly use English. What now?!?!
For this reason I started the conversation classes. During the 2-hour “lessons” we only talk in Dutch. Even when you are a very beginner you will be amazed by how much you can actually already say and how well you will understand the conversations! I will provide you with different speaking exercises that enable you to practice your social skills. So no role plays where you are visiting a doctor’s office (because how often do you go there?), but you will ask each other questions or you will talk about topics that you would also talk about in real life. During the classes you will learn new words, phrases, expressions, grammatical constructions and you gain more insight about the Dutch peculiarities.
Update januari 2020: I've cancelled the conversation classes for the upcoming period.