The idea of 'stoic' is still more gregarious than Thrawn is. We're talking calm to an almost eerie extreme. She's also not that far off either since he still has the 'flag officer' stance and behavior he's had most of his life.

"No, I'm not. I did not hear that planet's name until I was here either."

Well, the first time anyway.

"From what I have gathered it's not the same galaxy."