Eric Roberts shows three dumbbell moves that hit all three shoulder heads: a shoulder press for the front, side lateral raises for the sides, and rear-delt extensions for the back. Each exercise can be done seated or standing depending on what you have.
Chapters
All right, there are 3 parts of your shoulder, and if you do these 3 exercises I'm going to show you, you'll hit every single part and have a complete workout. Number 1 is simply just going to be a dumbbell shoulder press. This is going to hit the front of your shoulder, and if you don't have a bench, you can just do it standing up. Number 2, you are going to do these chest-supported side lateral raises where you push your hands out to the corner of the wall. Again, if you don't have a bench, you can just do these standing As well. That is going to hit the side of your shoulder. And last but not least, to hit the back of your shoulder, you can do these chest-supported rear delt extensions. And again, if you don't have a bench, you can do these just bent over as well. And then you have a complete shoulder workout. Hope it helps.