From my own experience, depending on how severe your stutter is, I would politely let the person I'm speaking to that I have a speech impediment and continue with what I am saying. It's a disclaimer and also to get that nervousness of 'will they know?' out of the way. Because they're going to notice regardless. If you know what you're talking about, what questions you're going to ask, or anything of the sort, there's no need to worry about your stutter. It's all about confidence. Regardless if you have a stutter or not. If you focus too much on your potential moments, any point you're trying to get across gets lost in your nervousness. Act like it's not there and present yourself as someone despite the handicap, you know what the hell you're talking about and you're a beast 💪 you got this homie!