I think a lot about what the way they talk can tell us about our Crows. For example, interjections.
Unsurprisingly, Nina and Inej use all variants with Saints (Saints; All Saints; For Saints' sake) and Wylan uses Ghezen (Ghezen; Ghezen and his works). Matthias of course has Djel (Djel; Sweet Djel; For Djel's sake).
Now comes the interesting part. Jesper uses Saints, many times in his own creative way (Saints; All Saints; For Saints' sake; All Saints and your Aunt Eve; All Saints and the donkeys they rode in on) and (!) he also uses Ghezen (Sweet Ghezen). It's quite obvious that Jesper adopted Ghezen during his long stay in Ketterdam, but since he uses Saints much more often, it seems like something he got from his father as a child, since Colm also said many similar things in CK (All Saints; Saints; For Saints' sake). Do they recognise Saints on Wandering Isle? Probably.
And then there's Kaz. What do you think of his interjections? Have you noticed or thought about it? Kaz out loud never used any! Not Ghezen, not Saints, not Djel. There is only one exception where the interjection was part of his inner monologue.
Chapter 3, SoC:
"As Kaz headed down one of the little canals that would take him past Fifth Harbour, he realised he felt – Saints, he almost felt hopeful."
Oh yes, Kaz in his head when no one could hear him automatically used Saints and it wasn't because he wanted to mentally tease Inej about her Saints. I think the moment he felt almost hope, something from his past slipped out of the dark parts of his mind where he buried everything related to his family. Do we know for sure that Ghezen is the only god the Kerch people know? What about people from the countryside? Do they honour the god of industry, commerce and trade, or someone else who is closer to them? Who remembers where Marya Hendriks was kept? The Church of Saint Hilde. In addition, we also know two Kerch saints, Sankta Margaretha and Sankt Emerens. Coincidence? I don't think so.
