How to increase web traffic?

[affiliate]

I have a client website (rhubcom.com)
After executing analysis of google analytics client website is getting 12000 visitors per month.
Client website is very well ranked in the search engines.
The bounce rate of the site is 70%.

What would be the best strategies to increase website traffic for this particular website?

What would be the best strategies to bring down the bounce rate to 50%?

Please help me to address these issues.

[jameskotler]

I would say
advertise, get social, mix it up, write irresistible Headlines, pay attention to on page SEO, target long-tail keywords, start guest blogging and invite others guest blog on your site.