How do I get people register on my website?

Hello I have created a website where users can post, promote, seek, sell and rent. It allows users to signup and seek a job, post a job, promote their website, blog, business or social profile, users can post property for rent and sell, tenants can find property for rent. users can also sell products and others can but from it. It also supports multi-languages and has currency options for selling and buying but now I don't know how to get people register on my site. This website is also a powerful tool to post anything and it will be indexed by Google instantly.