Inter-Kingdom Anthropology
When traveling or talking with gentles from other Kingdoms in the Known World, one may run into little differences in how things are done elsewhere, versus An Tir. Despite the fact that we are all playing the same game, forms and traditions may vary from place to place.
Cheering
In An Tir, we tend to shout "Huzzah!" in celebration. In other kingdoms, the common cheer is "Vivat!".
The King's Word
Here, we have a tradition of "The King's Word is law" - expressing the idea that if the sitting Royals make a decision, that's that (or at least until their successors decide differently). It's even been used as a chant/cheer during at least one reign.
I've heard it's opposite expressed in describing eastern Kingdoms, where "the King's word is a darned good suggestion". Apparently the Royals are not expected to do anything by fiat, but rather to head up discussion and put forth ideas.