I agree with Liawell. The best way to practice spoken english is at first in your head. Maybe try thinking about a conversation you had with your friend and then think about 'How would I have said that in English?' or try to make complete sentances in your head. If you have trouble forming sentances, you could try listening to books on audio-tape/cd for practice hearing(listening) and to try to build vocabulary. If necessary, maybe listen to the same chapter a few time and slowly progress through until you understand the book. After move onto another book and it'll be even easier than the first.

Try to find someone whos mothertongue is English or at least who speaks English very well - and then start conversation. If that's not possible practice English reading out loud, start to think in English, try to translate your every day conversations in mind.