Oh! Well, um... [How do you explain waterbending? It's a bit odd to think that she, Sokka, and Asami are the only ones here that know what bending is.]

Where I'm from, bending is when someone can control and work with a certain element. There are firebenders, waterbenders, earthbenders, and airbenders. [Because saying "an airbender" and describing the Air Nomad genocide would be a bit awkward right now.]

But waterbenders are people who can control water, essentially. There are many waterbenders in my tribe, although I'm not one of them.