Realize that even though you may think that you aren't in control of your body, you're actually very much in control.

I'm probably a lot like you in that you might tense up, voice drops into a "growl," and you might start trembling slightly all over.

I recently went in for a job interview at a pretty well-know tech company. During the presentation of my portfolio I was starting to freak out with all of the descriptions you listed.

One of the interviewers decided to dim the lights to help make my presentation more in contrast with the surrounding light, but he ended up turning the lights on and off, on and off to the point where it was basically interrupting the presentation. He and another interviewer fiddled over wall fixture and ended up playfully arguing over how to dim the lights in order to (ironically) facilitate my presentation

After flicking the lights on and off at least 10 times, everyone in the room was laughing about what was going on—including myself. After they settled on leaving the light on, I realized all the fear and panic had sorta of dissipated and I was able to roll through the presentation.

So I guess what I am saying is despite the pressure of an interview—stage fright, whatever it may be—ultimately, people are just giving you the respect to tell your story. You shouldn't feel scared or nervous; it's a normal aspect of our lives to stand and share our ideas to others. An interview or presentation is realistically not different than sharing something to your family or a group of your friends.

I didn't end up getting the job, but I was able to get feedback which really helped to confirm that it was a good presentation (also the role wasn't something I wanted so I was content with not taking the position):

Hey kaigenji,

Of course! I took some time to chat with a couple folks on the hiring committee, so that I could share the best feedback for you. Here's what I think:

Overall, the team really liked you - we thought you had a lot of passion for design, and a strong set of skills to begin your career with - in fact, several folks told me to watch where you end up for your first job, so maybe we can revisit this in a year or so. As far as feedback: it really came down to the right fit for the team. You have some really strong product thinking, and the ability to solve problems via smart UX, but we're looking for folks who index really high in visual designers to fill the new grad positions for this season.

I hope that makes sense, let me know if you have any additional questions.

Happy Wednesday kaigenji!

I hope that helps!