The rather unconvincing noises of pretended interest which an
adult has to make when brought a
small dull object for admiration by a child.
(
Taken from "The Meaning of Liff", but now in common usage.)
Example 1. "My wife accused me of nazeing when she related the events of her workday."
Example 2. "When I explained to Jack the
deep implications of my doctoral
thesis analyzing the use of hyphens in 17th century English
literature, he just kept nazeing me."