if you're new and worried about your follower numbers, don't! mastodon is more about the community and having fun with your friends. you can drop the toxic thought process where you viewed yourself as a brand on Twitter.
Use your local and federated timelines! Talk to people if something catches your eye! Don't gamify the experience here, be considerate. Think about being part of the local & federated community instead of figuring out how to go viral. Mastodon is super fun without those habits.