You have to do many things written here:-
1. Comment on other people hubs.
2. follow hubbers so they may follow you.
3. Always try to write good hub and select appropriate niche
4. set up your profile nicely decorated.
5. link your hubs with others hub precisely.
6. Engage in giving answer on questions
7. let others to comment on your hub
8. make your hubs complete
9. visit forum and support there
10. use SEO...........etc.