Hi If you are from Berlin area you could join the English Conversation Club http://www.meetup.com/englishconversationclubberlin/. They organize meetups where people from different countries talk to each other in English. You can learn the language and meet new people at the same time!
Hey, first of all thanks for your post! I´m not from Berlin. Originally I am from NRW, living between Düsseldorf and Cologne. But currently I have a project in Austria and live in Vienna until end of the year. But again, thanks for the link!