Gochisosama is a word when Japanese say they finish eating meals. Hard to translate it into English, perhaps "Thanks for the meal" if I dare do.
Thrown out walnuts shell. Holes found at the surfaces, so I think they are not for stock, animals ( probably squirrels ) just threw them out here. But wonder why they need to throw them at a same place? Maybe they are not completely eaten, some walnuts might be left inside for later meals?? Sometimes it's interesting to think about their behavior.