Purlwise

I am new to knitting and am trying to make a small tote bag. Pattern from DIY network: Edith’s small tote bag. Wondering what purliwise means. I figured out how to cable cast on adn now I’m stuck.

Thanks for your help. :??

when it says purlwise you are going to stick your needle into the loop like you would if you were going to do a purl stitch.