The speaker should notice when the room needs a clearer step instead of another illustration.

More examples do not fix a missing step. When faces go blank, the instinct is to add another story, another analogy, another way of coming at the same idea, but confusion about how you got from one point to the next is not cured by decoration. Illustration helps people who already have the structure. Everyone else needs the structure said plainly, in order, once.

Watch for the moment the room stops following and stop adding color. Go back to the last thing they understood and lay out the next step alone.