Touch sensors are programmed to detect when their buttons have been pushed in or released. You need to specify which sensor port a touch sensor is connected to. This icon causes the program to wait forever until the touch sensor on port 1 has been pushed in.
This icon waits until the touch sensor has been released.
Touch sensors can be used to control the motors. This program waits forever until the touch sensor has been pushed in. When this happens, motor A is commanded to turn on. Motor A continues to run until the touch sensor has been released, and motor A is commanded to stop.

The touch sensor fork
can be used to have the program do different things depending on if the touch sensor is pushed in or released.

In this program, if the touch sensor is pushed in, then motor A is turned on and motor C is commanded to stop. If the touch sensor is released, then motor C is turned on and motor A is stopped. Remember that a fork statement needs a fork merge at the end of the decision.