From Youchien magazine.

Cut out and glue the front side of Yui to her back side. A good tip is to cut a small rectangle of cardstock and glue it between both sides down her neck. This will prevent her head from tearing off after a lot of playing. Bend her forward at the elbows, forward at the wrists, back at the knees, and forward at the ankles. Cut a small slit above the Heart symbols (above shoulders), beside the Diamond symbols (through hands), and beside the Star symbols (beside her head).