"Considering my own obligations to the X-men, I can safely say kendo won't be conflicting."

He takes in that smile, those words, and tries to decide what he thinks of them. It isn't something that should be done on a whim, he thinks, or for half-baked notions of glory and adventure. But it isn't as if they'll throw him immediately into being a full-fledged X-man, if he expresses interest. There'll be plenty of time to see if he has what it takes, so there's no need to push too hard just yet.

Still... It doesn't hurt to know, if he can without a struggle.

"A matter of what principle?"