Bar table to practice German in Dusseldorf (Duesseldorf)

Someone in the same situation as me? That is, living in Germany but has a horrible German? How about a Saturday night at a bar to speak only German? After all, we live in Germany! Those who have the patience to hear rough German and are able to resist the temptation to speak English, please identify themselves. We could organize a "German speaking night" here in Dusseldorf. What do you think?