-Stalin liked to study marxism which helped to expand his knowledge of communism; this helped him to take over.
-Stalin also had interest in practical problems. He was interested in this because he needed to think practical and reasonable to have everything planned out.
-Party organization was another one of Stalin's hobbies. He took interest in this because he was always in different comminist parties and making different groups to support this interest.
-Joseph also liked to attend/ join other parties, that other people created. All of this helped to get his name known and how hands on he was as a leader.