[Maybe it's the fact that he wasn't flirting that makes it so embarrassing. The hints of a blush remain on her face but fade as they move on]

[In any case, he is absolutely and completely right about her lack of sneaking prowess. In that it doesn't exist.]

Don't be silly, Giorno. Burgers would get mushy and weird if they stayed in my pocket too long. [That's the only thing holding her back, apparently]

[Her eyes catch and follow the movement as it happens, and she nods vigorously at him and then responds in a stage whisper:]

Hey! I did! Let's tail 'em!