One study
I recall found a site with a 5 second load time having a 20% bounce rate, lowering it to 1/2 second load tome resulted in a 5% bounce rate. (Google's own internal design specs call for their pages loading in 1/2 second)
Having a not to complicated home page that confirms that it has the sort of content a visitor was expecting can help keep them engaged for those first few critical seconds when someone decides if they should stay.
Content is the king.
Write your own content
Do not copy from other websites
Easy Navigation is very important
Set Google analytic tool and webmaster tool to your website
Set HTML/XML sitemap
Give your website worthy
Analyze your target audience
Analyze daily visitors
Improve your page views
Analyze the keywords and keywords density
Concentrate on your social media websites like Facebook, twitter,Google plus and LinkedIn

The searcher lands on your website. Browses through your content and leaves. No clicks, no conversions. Either he didn’t find what he was looking for or your web page was too difficult for him to use.
A high bounce rate says your website attracts a large number of visitors who are not your potential customers or what you are selling is not relevant to them.
It is a signal that your website and your marketing strategy needs a serious redesigning.
Best way to minimize bounce rate of website is that there should be informatic and useful information on your website so that whenever user will come on webiste then it doesn't close it in lack of information.
Create good and redable content than reduce bounce rate
Keep Your Content Fresh.
Improve Your Content’s Readability.
Create Clear and Compelling Call-to-Action Button.
Get Social..
and there are many more points..
Key concepts are - Good content. Fast loading. Simple to use/easy navigation
Good question! I love the answer above! Loading time has a lot to do with it. Readers do not like to wait. Next to that your landing page has to be attractive. I think the KISS rule is a good one. (Keep it simple stupid). ;-)
post content regularly on website
u can update a high quality content