When you’re giving a speech or training, always imagine yourself in the position of your audience.  If you were listening, would you be entertained?  Would you be learning information relevant to your current role?  Would you be able to understand what you’re being told, and be able to implement it easily?  Always think of how you would experience training before putting it out to other people in the business.  Chances are if you’d be bored, they will be too.  If you’d find it interesting, you’re likely on the right path.