Chekov turns when he hears a voice (he should pay more attention, but he's busy taking in the sights, trying to commit as much information to memory as possible). The question clearly surprises him, but he smiles as he prepares to dismiss the stranger's generosity.

His accent is thick and clearly Russian, but he's not too difficult to understand.

"No, the kedans gave me some juulans. I just do not go shopping for clothes often."

Because space.