I met my bf on tinder, I feel like it's how a lot of people meet these days so I'm not ashamed to say it lol! I felt more comfortable messaging first because then I could get my personality across and if we were planning on meeting in person I could say first about my speech! I only had a couple of off reactions but the unmatch button is very easy to find! Me and my bf didn't actually arrange to meet we just bumped into each other on a night out and hit it off really! But other guys we've gone out for food, just sat in a park but I've always said over message 'oh btw I have a stammer just so you know' or something like that! I would say just try and be confident about it don't make a massive deal, mention it briefly then your speech won't become a massive deal! I find talking about it abit breaks the ice! And maybe in terms of a date do something like bowling or skating, an activity then it's not as intense! I find a drink or meal can be very nerve racking cos they just remind me of interviews! Good luck! :)