First thing you do is go see a recruiter, once you pass the asvab test, your recruiter will help you every step of the way. Make sure you do your own research so you can ask your recruiter any question you may have ie how to get promoted before basic, remember the higher your rank the more you get paid.

Got a call from them, scheduled a meeting, then show up ,dress up , remember your information and bio , do not be nervous, be confident, knowing what you can bring to the table