I get asked a lot about tips on public speaking because I do it so frequently. Positive response when I give a talk is generally proportional to how relaxed I was when giving the presentation and on good days I’ll get comments like people were able to relate to what I was saying or that watching me calmed them down. I don’t mention this in the video, but besides breathing and remembering the audience is there to see you do well, the best way to relax is to know your material down cold