When undertaking bodybuilding, attention must be paid to all the three major muscles of the shoulder, the trapezius, the rotator cuff, and the deltoid. Inculcate shoulder exercises that involve the use of all these three muscles. While exercising your shoulders, make use of compound movements as well as isolated movements. Give your shoulders a thorough workout with barbells as well as dumbbells. Some tips and variations are given below for you to choose from.