"One's name, to start with," Strange muses. Blissfully unaware of that squint and unconcerned of that judgement, Strange continues to bitch right back. "Or one's place of origin! Obviously you are English, I don't need to ask that question to you, but I've mentioned concepts that I thought everyone should know, only to be met with confusion. It is ridiculous that no one here knows of John Uskglass—"

Wait a moment. Martin is English. All of the Englishmen he's talked to here have not known who John Uskglass is. Ergo, there is a very high chance Martin also has no idea who Strange is talking about.

Strange gives Martin a look of slight affront, like it's Martin's own fault he won't recognize the name, before grumbling, "...and you probably do not know of Uskglass either. Urgh! Why do I bother?"

He grumpily slams back some of that appletini like he's taking a shot.