When he goes to a restaurant, he tends to order light and then ask for more later if it's needed. And if he sees food left over on people's plates, he urges them to finish, saying that they shouldn't let it go to waste.
上館子吃飯，寧願少點些菜，不夠再點；看到別人盤中有剩菜，也殷殷「勸食」，遊說對方不要浪費。