How do you get more members in your wolf pack on wolfquest?

It depends on which episode, or single player vs multiplayer. 1st episode(Amthest mountain) you + your mate are the pack, and 2nd ep. you, your mate, and your pups are your pack. When you are playing single, no-one can join, the computer makes up your mate's personality. Then on multiplayer, You need an acount and then you could probably join somebody's elses game(open) and invite your friends to play with you.