Has anyone ever told you, your son, daughter or significant other that they could or should be model?  The best place to start is in front of a photographer who knows how to create great 'test' or 'beauty images', has worked with some of the best makeup and hair artists (MUAHs) and stylists, and knows how to help with posing, runway, and 'finding the light'.  Build experience, confidence and your portfolio.  Just ask and I'll send a document that describes a 'Model Shoot', including many recommended YouTube links to get you started before the shoot.