Image Source: Free Public Domain

It’s nearly impossible to look at a penguin and feel angry. Joel Moore
https://www.coolaustralia.org/fun-facts-about-penguins/

During courtship, a male penguin will find the smoothest pebble to give to a female as a gift. If she likes the offering, she’ll place it in the nest and the two will continue building up their little pebble mound in preparation for the eggs. Google Feb 12, 2016