There is no substitute for being genuinely interested in others' writing and reading it with fine-tuned interest and care; then commenting on the person's thoughts is what endears a reader/commenter to the writers as well as catching the attention of the polls. If you care, it shows. But if your motive is just mainly to improve your score - well that shows, as well. Being a contributor by doing hub writing yourself is a major factor, of course. When you're active, there is a give and take which increases the comments you actually generate. Responding to comments you receive also increases your comment activity. Being passive does nothing for it. So participate if you wish be be a part of this experience, brandasaur. Best of luck in your pursuit. It's not just scoring - it's the measure of YOUR real involvement. Try it.