Welcome, Shea66.
A more specific question would be useful. As explained above, downloading is called "leeching," and when you finish downloading you are "seeding" until you pause the torrent or quit the torrent client. When you seed, you make available to other downloaders (if any), and you ratio improves as others download from you. Even if no-one is downloading, you get .5 bonus point per hour if you seed at least one torrent, and bonus points can be exchanged for a ratio boost.