How we cite our quotes: [Part.Paragraph]
Quote #7
Near the start [of the note], there's two words I never saw before, Ma says they're her names like TV persons have, what everybody in Outside used to call her, it's only me who says Ma. (3.329)
This is the first time Jack learns that Ma has a name other than Ma (though we never get to know it). Maybe we never get to know it because Karen Jones, or whatever her name is, is never who she'll be to Jack. To Jack, the only word to describe her is, and always will be, Ma.
Quote #8
"It's OK, sweetie. It's OK." Who's sweetie? His eyes are looking at my eyes, it's me that's the sweetie. (3.783-3.784)
Jack has only been known as Jack to Ma. The concept of pet names or nicknames is completely foreign to him, especially when these names are coming from a male stranger he just met.
Quote #9
I don't see any vultures, I only see person faces with machines flashing and black fat sticks. (4.6)
Now that Jack is in the Outside, he's going to experience lots of euphemisms and idioms that seem strange to him. He doesn't understand that "vulture" is another term for "paparazzi," though it'll make a lot of sense to him once he does get it… he'll understand that the photographers are scavengers.