thank-you

Why would colleges value something as simple as a thank-you note so strongly?

Instead of a thank-you the man smiled—but only slightly—and shook his iron-grey head—but almost imperceptibly.

But the rascal laps it all up, as a cat porridge, without so much as a wag of the tail for Thank-you.

She served him unwillingly and grabbed his occasional Trinkgelds with scarcely a thank-you.

He dropped these new gifts at her feet and ran away without even waiting for her thank-you.

He first wrote courteous, carefully worded "thank-you" letters to the president, vice-president, and department head.