There are times in social interactions that I feel like I'm coming off wrong or for some reason I feel really self conscious and if I lose control it just spirals. I've told certain work friends about it too, and they were like, "huh, you were fine. We didn't notice anything was off!"
Point being that
there is so much in your own head that you can do to sabotage yourself before the other person even has the chance to judge you that you give them no reason to give you a chance if you don't believe you deserve one. Long story short, I had a bad accident in college where a lot of the resulting damage was to my face. It's taken a long time feeling comfortable in my own skin and I struggle with it sometimes and fail miserably, but more often than not I'm successful.
Concentrate on the task at hand. If you're not being clear in your content, then fix that. You can't change how the other person is perceiving you through mind control, so you might as well fix it through your own thinking and action.
(more like gets off soapbox, but I like this gif!)