Keshab, if you're "tuned in" to your audience, regardless of who they are, you'll pick up the signs quite quickly. They'll shift around, look bored, get busy with other things, stare into space, etc. If they do that, I know it's time to change tack.

Great to hear Keshab that you use storytelling to help explain things. When I use stories, I pick one or two to make my point rather than numerous ones. I also look for clues, such as non-verbal body language, or ask them directly, whether they have got the point I was trying to make.