These tips are applicable to any career opportunity, whether it be a job, internship, or even a volunteer position. These opportunities are extremely valuable, because not only do they provide you personal skills for a great future career, but they also provide opportunities for personal development and self-discovery.
1) Maximize your opportunities. Networking is important, especially if you're in college and you are given many opportunities to do so. Take advantage of opportunities to network with professionals in your field. Even some of your recently graduated friends may be able to help you by giving you advice or recommending you to a company they are currently working for. Also, be sure to apply to as many jobs as you can, in order to increase your chances of getting an opportunity for an interview.
2) Have a great resume. Make sure that your resume can concisely but elaborately list all of your relevant experiences, education, and accomplishments, while also detailing your duties and responsibilities for each. Format them in a way that includes the organization you worked with, the time you spent there, the name of your position, and your responsibilities. Be sure to use a lot of active verbs to detail your duties, and of course, be sure to spell check. Lastly, be sure that the font is standard. Perhaps you may even have a portfolio of your past work, especially if you are going into a field like graphic design.
3) Write a great cover letter. When you send the e-mail to express interest in working for the company, you really want to convey how interested you are. For example, talk about what the company does and relate it to yourself, by explaining how your experiences and passions would make you a perfect candidate for the job. Also talk about your unique qualities that will not only make you stand out from other applicants, but also how they will contribute to the improvement of the company's work. Of course, talking about what the company does requires you do some research on them, which is great knowledge to have, since the interviewer may ask you about what you think the company's work.
4) Nail the interview. First, show up early and be dressed rather formally and clean cut. Approach the interviewer with a lot of confidence, which can be displayed by being confident in what you say, maintaining eye contact, and greeting them with a firm handshake. You can also ask questions yourself, such as what your daily responsibilities may be, or you might ask what the interviewer likes about the company. You will also most likely be asked about your past experiences and accomplishments, your future goals, and your strengths and passions as they relate to the job position.
5) Follow-up. After your interview, send a follow-up e-mail, to thank the interviewer for their time and consideration. Not only is this very polite, but it will make you a more memorable potential employee.
I hope these tips are helpful. Good luck on applications and interviews.