Ask HN: How do you effectively communicate or present?

I’m starting to realise it’s hard to find people who say useful things at work or speak concisely. (I’m also at fault here). I partly blame layoffs as people feel the need to constantly look very productive.

What’s the best way to improve my speech in such a way where I’m concise and the words I say are intentional? I want to keep people engaged when I speak. Trying to be a man of few words, but also still seem engaged despite being quiet.