You saw that you have more than 6 pageviews per session. Thats is what bounce rate is all about. The more the pages per session, the lower should be bounce rate. People landing on a page and then exiting without going into other pages ought to give high bounce rate. GA should be factoring the time spent per page also in the bounce rate calculation though. I am not a GA expert, so you don't need to take my words. Thanks
As a poster above mentioned that you can lower bounce rate by communicating to GA after every few seconds. I had been doing this for 2 or more years and it lowers the bounce rate. Recently I removed that stuff because it doesn't give any considerable ranking improvements for me, atleast (again no Google expert)