Yea dating is even harder when you have a stutter. That's for sure. But I'd say keep doing what you're doing. Try not to let any discouragement get you down for too long. Stay personable and your won't scare off any guys. Smiling and being friendly is a good but it'd better if you do something that really indicates to us guys that you're not just being friendly and we aren't imagining things 😅. If you feel you're not going to block, try complementing his beard or eyes or hair or smile or something that. Or you can give eye contact that indicates attraction. Like a bewitching look you girls sometime give plus a smile. That's a dead give away. If you're really brave, try establishing phsyical contact like with the hands or touching his shoulder playfully. Good Luck to you and hope you find what your looking for!