In the past, I masked by acting like a quiet person, so I could get jobs. That did not work out for me in the long run mentally, because in the end, I wanted to speak. Now, I have a different approach. Now I disclose 3 things first in interviews. 1. i have a speech impediment 2. I like speaking 3. my frown face is my focus face. I say something like "Before we start, as some of you can tell, I have a speech impediment. But I like speaking. You may think, 'really? but why you frown?' My focus face sometimes looks like frown face."