I'm new to knitting to so I'm not sure that this will help but the video in this thread (right below this one currently)
http://www.knittinghelp.com/forum/sh...ad.php?t=85679 really made the difference between knitting and purling clear for me. Its teaching to do the k1 p1 pattern but even if youre doing full rows it makes the difference in the stiches pretty clear I think. Hope it helps. I woulda linked the video itself but I'm not sure how. It's in the second post.