wear your pashmina as usually. make sure both side are in a same measure. the points I circled are the side that we use for the next step.
take the back side (the point I circled) of you pashmina.
bring it to front
pin it with safety pins. make sure you pin it inside the pashmina. so the safety pins would not appear. do steps 2 to steps 4 again for the other side. and you are finish. add a corsage in front if you like.