There are a few ways to use washi tape when making paper greeting cards. One way is to simply wrap the tape around the card itself, either horizontally or vertically. You can also use it to create stripes or patterns on the front of the card or even decorate the edges. Some people like to cut out shapes from washi tape and attach them to the front of the card or use it as a border around the edge. Whichever way you use it, washi tape adds a unique and attractive touch that can really dress up a simple paper greeting card.