[ The shock gives her momentary pause, but that completely makes sense: she'd been completely surprised when she'd run into someone from her world's future - that must be exactly what it felt like for this man, she decides, and smiles apologetically. ]

I guess the outfit gave me away, huh?

[ But there's a careful gentleness in her voice; she has no idea how long he's been here, or how much he's used to just yet. ]

I am. Katara, from the Southern Water Tribe... it's nice to meet you. Are you lost?

[ Her memories are a little fuzzy, but she should be able to manage perfunctory directions, at least. ]