Family on board
A nice thing when you are in Brazil is to have your family on board. They can come on board the ship, while it is at the port, they can walk around the ship, and they can eat at the buffet without expend any money for this. And when you are in your break, you can go with them and show the ship and eat in the buffet with them. This is very easy, you just have
to fill up a form, that the crew office lives close to the door, over a box written "visitors", so you put the name, age, ID number and birthday date, you can bring until five people on board and you put this form inside the visitors box, three days before the port were you family will be in the ship. The security will take the forms, show to the staff captain, he will sign it giving the permission and them, the name of all the visitors will be in a list, which the federal police will have a copy, so, your family will show some ID with a picture, the security will hold it during the whole time your visitor is inside the ship and when him/her lives the ship, the security will deliver
the ID back. You can invite family, friends, whoever... They can use the pool, eat at the buffet, as they were passengers, they just can't buy anything because in the ship they don't accept money, but if you want to offer some drinks to them, you gonna have to buy it with your crew card.
Now, if you are a very friendly person and now people from every department on the ship, you use you mafia to get some free drinks, gifts and also special treatment to your visitors. When the ship is not moving, like in port, all the stores inside the ship closes, they only work at sea, so your visitors don't have access to buy in the duty free, so if you want to buy something to them, you'll have to buy it before. The crew members has 20 % off discount buying things in the ship. Drinks only have discount at the crew bar, in the regular bars the crew member have no discount.
The crew members are also allowed to buy cruises for their family and friends. They only pay 20% of the whole price of a regular cruise, so it is very cheap, any crew can afford it.