Basically, it means just move the stitch from the needle with stitches that need to be knitted to the needle with the stitches that have been knitted, but don't actually knit it. Put the empty needle into the first stitch like you were going to knit or purl based on what you would normally do for this stitch, but don't actually knit the stitch. Just slide it to the empty needle. Make sense?

A website that I have come to love is http://www.knittinghelp.com/ They have great videos of all different kinds of techniques from the very basics to super advanced.

Hope this helps.
Angel