"I am Thor, son of Odin." Most of the youngster's name doesn't sound terribly familiar to him, but Maximoff does. Isn't that the Sokovian girl's name? He can't quite recall; it's been a few years since he's been on Earth, and he'd only met her the once.

Still, a familiar-ish last name and the ability to run far faster than Thor can see... "You aren't Sokovian, are you?"