you don't
you just link to facebook its that easy.
You can't.
You can do surveys for free Facebook Credits for membership. for free treats
you can't when you see people telling you free membership codes don't listen because they used it no matter if nobody else did I know I tryed.
You could a free membership by getting the membership as a gift.
No
yes you should get a free rolypoly membership
There are no membership codes to get free membership. You either have to pay, or make do without membership.
No, I'm sorry but you have to buy membership.
In stores
You Cant Without Buying A Magazine With 7-day Membership
There is no way to get a free membership on Club Penguin without hacking. (I do not recommend hacking because if you do Club Penguin will ban you.)