Here's from my experience. Sit down relaxed smiling at the other person, casually look them in their eyes. Any experienced person will start with small, getting to know you questions. Try to build a temporary rapport during this step i.e. get comfortable with other person and then just f\*\*k everything else and talk about your passion, love. This stuttering doesn't deserve to be the first thing always on our mind, we have much more going on for us.