She is generally shown to be a source of information, added to show a sense of family in the household, or even as comic relief.
She also experiences synesthesia, where one physical sense adds to another, in her case seeing music as color.
This sense of the past adds to the fun of a shopping tour through Old Pasadena.
The sense of claustrophobia added to the atmosphere and drew me into the story.
Words were everything and a quirky sense of observation added an extra ingredient.
This odd sense of being two persons added to her growing state of misery.
And a deep sense of attachment to planet Earth, one might add.
And the sense of exlcusivity the price tags creates just adds to it.
Or his senses, he might have added.