{{{Sean}}}
omnis gives good advice! May I add a small silly detail: take a pen with you. Having your own (working) pen means: you came ready and prepared for the job at hand (filling out forms), and the person giving you the form doesn't have to search for dang pen that works. It makes you look good.
Much ~ma to you! You can do retail, and you can do physical labor type jobs, and you're smart, so don't skip over anything thinking they wouldn't need you or you couldn't do it.