Have a well presented resume, list skills that you are actually good at and dont just list off everything you think you can do. Experience counts for a lot, but if you dont have experience then say that and just be enthusiastic about learning. Apply for a job you think you'd really like, and that will naturally help you be enthusiastic about it. Know what you want (besides a paycheck) out of the job before you walk in, even if it's just saying "I want experience in this field to move on to bigger things", then the employer knows you're not interested in staying long term but you'll be dedicated while you are there so that it furthers your career.
I've interviewed countless young people that just list out everything they know, which while respectable does not convey that you're a real person or that you care about the job. Some even just come and ask "what kind of job can you give me" and it's incredibly awkward and in a way sounds like they are entitled to something. An interview is about what you can bring to the table, not the other way around. You are there to offer your skill to a company, show that skill or show interest in learning it. However, it's not a one way conversation and the job has to be right for you too, so after you show what you have, towards the end you can ask what the company can offer to you, salary and vacation and benefits and such. Make sure it's a good fit, and if you're blessed with an offer, dont accept it immediately unless you know for sure that it's right. You can always take time to decide.
There are lots of factors that come in, but the main thing is just be yourself, be confident, and know what you want to get out of it. Good luck! Let me know if I can help.