To a certain extent, the answer here is always going to be content related. You have to give people some reason to stay on your site because any experienced web user is going to be more than willing to just hit that back button or cancel the page if they don't see anything on the site that entices them. Whether it is an article, a clickable menu or a special offer, you need to give them a reason to stick around.
It has been mentioned that there is some software that can artificially boost the bounce rate, but as that user said there is no certainty that Google won't figure that out and penalise you for it. If you're not going to work to lower the rate, then enjoy having a high bounce rate. Simple, really.