LOL, welcome to the AndroidForums, Ange / gtibabe!
The rooting method varies for each Android device and even the version of Android that it is using / running. So, its impossible to give you specifics without consulting or really having first-hand experience with the particular rooting method.
So, you'll really need to consult the all-things-root sub-forum for your particular device, which we'll be more than happy to help direct you to if you let us know which device you have.
Don't get discouraged, but definitely make sure you do your reading and research before jumping-in. I like to think that rooting brings some responsibility on your part to know and understand what you are getting into, since you can do some things to your phone that your carrier and manufacturer are not responsible for.
Lots of folks have rooted their phones and the ones that are most satisfied are the one that really have done their homework and research.
Good luck and glad you signed-up

.