She heard and mentally recorded people's words in the same way she copied words she read. Could she ever hear what a person did not say?
We do our children no favour by keeping them near, coddling them, or showing them off to adult visitors. Not that a nursemaid does not sometimes spoil them. But the greatest favour we can do our children is to give visible example of love and esteem to our spouse. As they grow up, they may then look forward to maturity so they too can find such love.
People are such great mysteries. Just when we think we have understood them, a wonderful new aspect shows in them.