She's ruminating on that wild story he just dropped in her lap like it was nothing, he can see it written plainly across her face, even from the edge of his vision as he puts the finishing touches on his nails.

His eyebrows arch upward at her sudden leap. "Yeah... Impressive. How'd you guess?" They don't look alike, or even act very alike, so he's kind of impressed that she put it together on such little information.