pebbling

verb

1. (form-of, gerund, participle, present)present participle and gerund of pebble

noun

1. (countable, uncountable)The placing of pebbles in any of several board games.
2. (countable, uncountable)A way of graining leather with a ribbed or roughened appearance.
3. (uncountable)In neurodivergent people, the act of offering small, meaningful gifts or gestures to express affection and establish social bonds.

   “penguin pebbling”