Recording is quite simple once you have installed Audacity on your machine(s). Simply run the software from your Start / Programs menu, and create a new project. To record, press the red circle on your toolbar. The yellow square button will stop your recording, and the green triangulr button will initiate playback.

While recording, the relative strength of your voice (as recorded by the machine) is reflected by the audio level graph. To ensure the best recording, try to keep your levels within a certain audio range that appears so:

If your voice is quiet or your microphone levels too low, the wave graph will appear like this:

Or, if your voice is too loud, the wave graph will appear so:

To produce the best sound, it's far preferable to test your recording voice and levels prior to creating your final production material. Simply record a "test piece," listen to your volume, and then make any necessary adjustments. It's far simpler to record great audio than to edit quiet or loud audio. And, since your audience can only hear what you have created, it's best to create the cleanest audio possible!