Truly, no one will say anything. If they do, you can choose how to handle it but I just simply say “I stutter” and usually they get all sheepish. I’m a therapist/professor and talk for a living. If you’re confident (chin up, chest out) and act like an expert even while stuttering, no one will question you. If they do, you do hold the needle, they might be a really hard vein to find 😁