Quick is a big thing. Not being late, and being true to you and everyone else involved at the shoot! It isn't flaking out if you cancel a job that you really don't feel comfortable doing, or at ease with, or don't think it will help you, your portfolio or resume. but at least give the crew a warning.
Being involved with your pursuits is the only way it is going to happen. Everyone it seems has a website, everyone it seems has a photo of themselvs downloaded somewhere, on some website, so as a petite model, or any size model, you have to push yourself every day and do your homework. If you are waitin for the phone to ring, agency to call or modeling dream to find you, it most likely wont. You have to make your resume, create your modelnig purpose and you will see results. But it starts with quality photos, whether naked, whether in a huge down jacket on the slopes of Vermont, quality photos of you will get you places, persistance will, being available will, being social will, asking questions and seeking out answers. And working with ambitious people, being around those who are striving is key!