Make sure your website is mobile friendly and contents appear first instead of ads when visitors will visit on your website, open external links in new window which helps to control bounce rate.

Analytics – Figure out bounce rate and traffic sources for your most popular pages. Your website’s overall bounce rate is too vague a number. A detailed page-level report will help you identify your highest traffic pages and your worst offenders when it comes to bounce rates. Analytics also delivers insights regarding where this traffic is coming from.
User Testing – Figure out what users are doing on your site. The ability to observe how users interact with your site is invaluable in determining the cause of high bounce rates. Using a CrazyEgg heatmap might reveal that only 30% of visitors see your call to action.
User Surveys – Ask users what they are looking for and whether they can find it. Analytics and testing will only tell you so much. Some stuff you can only figure out by asking visitors directly.

Simply the bounce rate of any website can be decreased only by enhancing the look of a website and using the catchy content in it. It will help you to engage the visitors on your website for long time which could decrease the bounce rate instantly.