If you mean your Author score. The key to getting and keeping a high Author score is to participate in the community, such as the Forums, Answers, etc. Also read and comment on fellow hubbers hubs. Become followers of hubbers you like and most times they will reciprocate, but don't solicit followers. In short, I reiterate, participate in the community. Individual Hub scores are a matter of writing good hubs, and getting them read, that's where participation will come in handy. Hope this helps!