I like Andrew Ng's short article (https://www.linkedin.com/pulse/20140320175655-176238488-learn-to-speak-or-teach-better-in-30-minutes/ https://www.linkedin.com

I like Andrew Ng's short article (https://www.linkedin.com/pulse/20140320175655-176238488-learn-to-speak-or-teach-better-in-30-minutes/ https://www.linkedin.com/pulse/20140320175655-176238488-lear...) about this topic. Recommends taking short videos of elements of your speech and then watching them, tweaking, and repeating.