Read up all that is there in the learning center, help section and FAQ
Read up hubs on how to get started by some the pros here - really helps
Write original hubs if you want your scores to increase..
Learn how to do keyword research and SEO for writing hubs that will earn you money
Participate in the forums and the answer section of the community
Review other hubs.. and comment on them that way you will have your hubs reviewed and gain good followers.
Read as much as possible to see what is working for others and incorporate them in your hubs
Never follow people randomly.
Work hard and be patient.
I hope i have mentioned all that there is ..but one can never be exhaustive enough........