For me the best training exercises to learn to speak better are high pressure events. I don’t mean crowds where you are fending off stage freight. Solving for stage freight is implicit to solving for high stress generally.

I mean there is some epic outage at your mega corp employer and all eyes are on you to fix the problem sort of pressure. Let’s call this soul crushing pressure coupled with time pressure and doing 3+ things simultaneously. There is no way out. No easy escape. You just have to keep slowly crawling towards resolution with the death stare of everybody on you. In order to creep towards resolution you must be able to talk through the problem as clearly as possible. Less is more and precision is epic.

Slow is smooth. Smooth is fast.

When you train your mind to operate in this high pressure context your speech will improve.