You also have to stop your rod, an actual quick stop which allows the rod to unload. If you cast forward and simply let the rod slowly move to a position in front of you and you never physically stop the rod then the rod won't unload which is what propels the line forward. The line will simply fall into a pile in front of you.

Not to confuse the issue:

Now then, to actually achieve this when you want it you still stop the rod and let the line shoot forward, then you give the tip a quick little movement backwards and the line will fall down. Done properly, the fly and leader complete their forward movement and land quietly upon the water and some of the line falls into a small pile. This is a parachute or pile cast, one of the ways to achieve slack in your line to allow the fly to float drag free for a longer period of time.

But then, first you have to learn to cast correctly. Timing is everything and make sure you stop your rod on both the forward and back casts.

Practice, practice, practice and you will get the hang of it.

Larry ---sagefisher---