The best tip I can give you is working to overcome the fear of stuttering. The more you think about it the more it happens. What has helped me is trying to control my breath as I speak. Because of my Stammer I used to just blurt everything out. I find that by controlling the speed of my speech I am able to take control of the mid conversation Stammer. What do you struggle with most? Getting that initial word out or not managing to flow?