[His ears prick up and swivel around when he hears someone following. But he doesn't give up following that smell yet-

At least up until she talks to him. Then Koromaru turns around to give her his (nearly full; this is food we're speaking of) attention.]

"WOOF!"

[Yes, yes he does! And as the body language clearly shows, he's quite curious about what sort of food that is; you wouldn't happen to know, would you miss?]