Magic was abundant like air in Kell's world. Only he truly knew how unique Red London was in that regard. Regular people knew that other Londons existed, and that they were different, but that was the extent of their knowledge. Only Kell ever visited the other two. One hungry, one dull and drab, both empty.
It was considered ill omen to born without magic. A greatest punishment, worst than death, to be cut from it. Even if most people had only a little of it. Most were able to master their own drop enough to use it daily, almost casually.

For all his involuntary stay in Abraxas, Kell has not met a single person coming from world with an attitude to magic similar to his own. It seemed that most treat it as something special, something hidden or dangerous.

Even Sabine, who in Kell's eyes has nothing to hide, whose magic is of such unrivaled beauty he can't help but be drawn to it. Even for her, the first impulse is for the mundane. Kell himself uses his own less here, after his usual behavior gained him enough of sideways glances to make him think it's not coincidence. That he's making people uncomfortable.

It's difficult not to forget about the cake when talking about an interesting subject. That's his weakness, he's always more focused on conversation.

"Tell me about them. The ones you saw."

Though he would need to be dragged kicking and screaming into it, but Kell actually is a pretty good actor.