A sentence's meaning

[Zhao]

Hi !

I've found difficulty in understanding the following sentence from The Great Gatsby : ' He didn't say any more, but we've been unusually communicative in a reserved way'.
I'm confused about what Gatsby meaned. Does he mean that when his father and he communicate, it's in a reserved way which it's unusual because they're father and son ? Or does he mean that when they talk it's unexpected and they proceed in a reserved way ?

Thank you in advance.

[Zhao]

If a more experimented user pass by the thread can he advices me whether I should post my question in an other category or not please ?

[NikolaiI]

' He didn't say any more, but we've been unusually communicative in a reserved way'

No, I believe it refers to subtle communication: non-spoken, just the sense of presence, and so forth. Most communication is not verbal they say, and I believe that it's true. No, you posted in a good place.