Katara blinked rapidly in response to that - okay, that had been completely unexpected. But those were three magic words as far as she was considered - she could never turn down someone who needed her.

Provided, of course, that she agreed with the kind of help that they wanted her to provide. "Okay. I won't tell anyone."

That's the easy part to promise. But even so... "But I'll need to know what I'm helping with before I can agree to anything."

Although, really, you're halfway there, Buffy. Someone to help, something to do... it doesn't take very much at all.