Put your brass fastener through the hole and hook your arms. Take the hand and glue one to each side. Take the second set of arms you made and glue it on top of the arm with the brass fastener. This will let you hide the fastener. This is a cosmetic step, you do not have to use it if you do not choose. If you choose to not put the cosmetic arm on, make sure when you attach the hand you attach it to the back of the sleeve. If you decided to use the cosmetic step, it does not matter if you glue the hand on top or on bottom of Yoda.