You'll use both hands in this method to create a sense of a continually sinking stroke. Start one hand at the tip of the penis and lower it to the base and let go. While you're doing this, as soon as there's room start the other hand at the tip and follow the first hand down. Continue alternating in this fashion, and you should create the sensation of one infinitely long gentle slide down your penis. Reversing the direction gets you the Infinitely Rising technique.