Neighbours are found when you have friends playing Pirates Ahoy! You don't need to invite them like My Empire, Cafe World... You can earn coins, resources and food when visiting them. If you have no friends, you will only have Pirate King. He is not your friend so you can't receive any givings from him. Instead, you'll have to find coins, resources and food by attacking monsters. You will be unable to battle in Battle Arena, too! Only friends can fight in Battle Arena.