I always say, ‘I stammer and I experience word blocks so it takes me a while to say my name’ whenever I’m asked. They usually go ‘that’s fine’, then I proceed to spell it out and they pronounce it and we move on. I do it so often, it doesn’t bother me anymore. At the beginning I used to be ashamed of how long it took me to say my name but when I lead with the fact that I have word blocks, it removed the anxiety of trying to say my name on time. I recommend this approach.