Just paste the text you want to read in the text area, set the words per minute, place the cursor in the text where you want the reading to begin, and then click the Start button. Click the button again to stop reading the text.
This applet can also be run standalone as a regular application if you download it and execute it with this command: java -jar MyRSVP.jar. It can also be launched via Java Web Start from this link. The source can be downloaded in this zip file, MyRSVP-src.zip, and is licensed under a BSD style license.