[Vivi nods.] Mmhmm. I think that would be best.

[It'll also give her time to solidify exactly what the initiation will actually be. She has some vague ideas, but nothing certain. She raises one finger.] And it might go without saying, this is a secret pirate ritual, so you can't tell everyone about it, all right? Katara-san and Aang-kun should be fine, but use discretion.

[That part is just pure theatrics. A secret ritual is more exciting, after all.]