In 90% of cases, your only converting traffic will come from Google. So your question "how do I get traffic", assuming you're not into some sideline project to try and snatch visitors from social networking etc, is the basic question of SEO.
Most of this forum is about how to rank well in google, and therefore, secure that flow of targeted, converting traffic. It's the essence of SEO.
So I would say to you, search this forum and learn about SEO.