My teenage daughter-PWS (absolutely refuses to disclose. Because I don’t, I can’t say from her standpoint. But as a person who doesn’t, I think it depends on what makes YOU more comfortable. As a person (50yrs) who doesn’t stutter, and has never had much exposure with PWS until my daughter…and please don’t take offense…I do feel at my age, knowing upfront would make the conversation more relaxed because I would have a better understanding of how to receive the conversation. But that may be because I now experience it daily. I don’t know how many new people would ask you about it, for fear of possibly thinking it might be offensive or you don’t want to answer that question. I also really believe it depends on age/maturity of people and that they may not know what some of the acceptable responses are. Until my daughter, I was never taught not to finish the word/sentences and to be patient. I would have thought I was being helpful. I feel your question would provide more answers if you ask it to people who don’t stutter or been exposed much to PWS. Or possibly try it a couple times and get a feel on the differences in responses. Then I think you could decide if that seems to be less awkward for them, would it be less awkward to you?? Or vice versa. But I ultimately and wholeheartedly feel you should do what’s more comfortable for YOU. I hope I didn’t overstep, I’m learning from all of you.