I think you just have to keep writing for starters. Publish hubs that interest you first and foremost and find a way to make it interesting and insightful for others. Also, comment actively on other hubs because usually people check out who commented on them. And another thing is to answer questions, participate in forums and make your presence known.
To catch people's attention, all you need to do is write good hubs and think of interesting summaries and titles. Good luck and I hope my advice helps.