Hiya. I’ve been in and out of the US many times, now a visa holder. Here’s one simple trick: in your documents folder, just bring a piece of paper that says: My name is X, born X/X/X I am speech impaired (stutter) so i have written down a few notes about my travel plans… Then just write where you’re staying, who with, your relationship to them etc. You’ll be totally fine. If you need any help writing it just message :)