"I don't know what that is." A water pump, he means, since Guilmon is helpfully explaining pumpkins.

Firepaw puts his nose to the ground, and tries to pick out grassy, vegetal smells. It's tough to do in the city, with so many overlapping scents moving this way and that, but he does manage to catch... something. Grassy, but not overly so, and very faint the way that Ghost Pokemon are.

"Oh- boo! Like a ghost." He walks off in the direction of the scent, with his nose in the air. He... might crash into someone, while he's focusing.