Read this thread. Your attire is good, don't forget dress shoes and neat hair. Find standard sets of job interview questions online and answer them out loud as if you were interviewing - this will help you get into the interview mode, think of relevant things to say, and cover lots of material. Just like preparing for a civilian job interview. Go over the forces.ca website including the multimedia section, know about your trades and the CAF. Sit straight and act respectful. Yes, bring an updated resume with you if it has changed from the one they have on file. I am sure it's fine to bring pen and paper, even if paper contains some notes, though you shouldn't rely on the notes. Don't be nervous, nobody is trying to fail you, just want to know more about you. You'll be fine! Did I mention go over this thread? Good luck!