firstly, if your hub is well written, including good search engine terms (need to understand a bit about Search Engine Optimisation), then it will get indexed in google and hopefully be found by people doing searches. Also people may share it if it is well written and informative.
Next, build up followers on Hubpages, again by being a good source of information that people want to read.
Then there is some marketing of your own hubs. When you write them, share them to your Facebook friends, twitter, Google+ etc. Also link to your articles from other places so that people will follow the links to them.
I'm sure others can add in some other insightful strategies too.