Thanks for posting and asking! I agree with the previous not to bring it up unless they do. What you are doing now is perfect. I so appreciate when people just wait me out and ignore it. I think about it enough, I don't want to talk about it! And I don't really have much to say about it anyways. It happens, I move on, so it's great if others can as well. If they do bring it up you can ask if there is anything you can do to support. And, a manager of mine once told me how impressed she was in my job interview that I could stutter and would just compose myself and move on. I appreciated that feedback, but I brought it up first. I wish everyone was like you!