What is seeding, and how do you do it, becasue I see all the time on the pirate bay, and people saying please seed or whatever and I have no idea what it is
Seeding can only be done by people who have complete copies of the file for download (generally), it might take 6 hours to download the torrent but once you have it you can seed the torrent to everyone else (upload the completed file) for days/months/years.
Generally leaving the bittorrent client running after the download is complete will seed the file.