My favorite way to masturbate is to get totally naked, lie on my bed and slowly massage my balls. Then I slowly move up to the base and stroke my dick slowly. When it starts to get a bit wet I pull back the skin around the head of my cock and play with the tip for a while. Then I stroke it fast and slow but stop before I have to cum until I can't wait any longer and feel I will explode. When I'm ready to cum I go really fast and arch my back and legs so I'm pushing off the bed as I cum. I shoot the cum on my stomach.
This is even better if someone else does it for you!