Just exactly what it says...Faith + nothing = Salvation...Just ask Jesus to save you...
Are you telling me sinners do not have to change their ways? Does Scott Peterson now get to be saved without changing his course?
Your heart gets changed...(Man judges the outward appearance, God judges the heart...)And as a result of the change of heart, you will see the sin that you previously took for granted...
Even Paul the Apostle couldn't get over his sinful nature after he got saved, For I know that in me (that is, in my flesh,) dwelleth no good thing: for to will is present with me; but how to perform that which is good I find not.
But to answer your question, you will repent in your heart as a result of your salvation and you will want, and try to do good, and will even succeed at times...
If you have to ask, is it really free? What an interesting distinction some Protestants make between what is and is not a "work."