I was away for a while so it took me some time to reply, but anyway, I usually just 'complete' my stutter and finish my sentence, and then after that I quickly say "I stutter by the way". So that's it, I don't try to start a new conversation with it, I just say it so we can continue with the original conversation. Often the reply is something like "oh okay no problem". Sometimes it does spark a new conversation and in that case I'm happy with it as well Of course it might not work for everyone, and it probably also depends on how heavy your stutter is