1. Barbell press: exercise the front side of deltoid muscle.
2. Sit dumbbell side lift: exercise the middle of deltoid muscle.
3. Sit on the dumbbell and lift forward: exercise the front of deltoid muscle.
4. Sit on dumbbells and lift horizontally: exercise the back of deltoid muscle.
5. Sit on the dumbbell and lean against the bird: exercise the muscles around the shoulder blades.