From the description, I understand is something like the shopkeeper slowly walking behind you as you go out of the shop. Not sure if that's what is meant, but I

From the description, I understand is something like the shopkeeper slowly walking behind you as you go out of the shop. Not sure if that's what is meant, but I've seen that in some shops in Argentina. It's like an unspoken goodbye? But here, depending on the kindness and general attitude of the shopkeeper, it can be seen as anything between polite and creepy.