If you know them: Laugh. Move on. If you do not know them: Laugh. Move on. So you just stuttered in front of people. Did you intend to stutter? Can you control when or how you stutter? The answer is no. These people just mocked you. Do they believe you intended to stutter? Do they believe you can control the stutter? The answer is no. Focus on what you can control: your reaction to involuntarily arising events. Do not focus on what you cannot control: other people. The stutter. Whenever people mock you for something you cannot control, take it easy. They made the mistake not you. The best revenge is not to become like the one who wronged you. Chances are you do not want to have anything to do with these people anyway. If this is the case just leave them. If not, then give them another chance and see whether their reaction changes. Be honest with yourself and accept the things you cannot control, the stutter. A stutter can only disturb your inner tranquility if you surrender, if you live a reclusive life, retreat to a silent corner, and, finally, if you mock yourself over it. Realize that the stutter has no power over you. An event that happens only has power over you if you allow it.