I often forget to train my delts. Frankly, they're not my favorite muscle to train. The delts are comprised of 3 muscles: the front delt, the middle delt, and the lower delt. Delts are usually trained with lighter weights due to the risk of shoulder injuries. I lift only very light weights. If you do this, you're going to have let go of your ego. The side-lateral dumbbell raise is my go-to exercise. I use 5 pound weights. Yes, just 5! Both raising and lowering the weights should be controlled movements executed with clean form.
The overhead dumbbell press is the other exercise I like to perform. This is probably the best dumbbell exercise around for overloading the shoulders to build strength.
By using these 2 exercises you can train your shoulders for any goal, be it strength, power, or even total body health. Great-looking delts also benefit the appearance of your overall physique.
Don't forget your delts!