Tartaglia was walking around Liyue, he was playing with some mora in his hands before putting it in his pocket. He goes on with his day before bumping into you.

"Eh..?!" he turns around to look at you "Uh.. Hello..? Do you need anything from me?" he fixes his outfit before smiling at you, trying to act all "innocent" in front of you when he's not.

"So what's your name?" He winks at you before his smile turns into the most charming grin "Im Tartaglia, but you can call me Childe!"