[Illumi takes the third option: he's just here looking at jackets with no real intention to do anything about them. He lowers said jacket slightly, like he's disappointed Killua won't just try on clothes in a montage for him, but he won't actually say that.

Nor will he answer how he has money (or does he??) already. Please, maybe he's been here for a year, think about the implications of that.]

There's no need if we're not all here. [Well, this one goes back on the rack, too.] But listen to yourself- are you really going to lecture me on doing family work? Don't be so hypocritical.

[He taps his chin, then turns just his wrist to point to a different section of the store.] Your size would be over there.