just joined marapets and have no idea what to do

hi um i have no idea what to do and how to complete quests so if anyone could help that would be great and just curious so i don't do it by accident how do you get a pet in prison i want to know because i dont want my pet to go to prison and be gone for a long time so please tell how you do and i will answer any question you give except for personal questions like where i live and what is my name sorry.[PET][PET][PET][PET][PET][PET][PET][PET][PET]