My vocabulary is very wide and I can decide, on the fly, to change one word for another, and that only as a response to avoid stuttering in certain words. As a

My vocabulary is very wide and I can decide, on the fly, to change one word for another, and that only as a response to avoid stuttering in certain words. As a result I am quite eloquent, and for this reason my colleagues often ask me to be the one to give lectures, talks, and that means that my work is better known in my area (I'm not the best contributor). It's strange that because of my stuttering I'm now the master of ceremonies.