I hadn't seen this post by Dan Mall about speaking when it came out, but read it as it was shared on Mastodon today. This week I gave a talk that I was quite nervous for beforehand and quite happy with afterwards; from my experience I would second all the advice he gives here on public speaking.
Hidde de Vries (@hdv@front-end.social) is a web enthusiast from Rotterdam, The Netherlands. He currently works on accessibility standards for the Dutch government (views his own) and is in the W3C's AB. Previously, he worked for Mozilla, W3C/WAI, national and local governments, Sanoma Learning and others as a freelancer. Hidde is a public speaker (all 79 talks). In his free time, he works on a coffee table book covering the video conferencing apps of our decade.