A lot of times stutters are in the form of blocks - so no sound comes out, you're just trying to push out a syllable (usually a vowel). We get lots of blocks on irreplaceable words like names, titles, numbers, etc. I recommend watching videos online of people stuttering and try and learn their patterns. Try and put yourself in the position of not being able to get the word out and the secondary movements will come naturally. Thank you for asking here as well. Any implementation of stuttering is awareness in my book, as long as it's not to poke fun of course. Good luck!