Avoid Negativity. The quickest way to kill a good internship is being negative. So, avoid complaining, being rude, disrespecting coworkers, arriving late, leaving early, being closed-minded, missing deadlines, appearing arrogant, wearing improper attire, acting unprofessionally, appearing inflexible, and taking part in office politics. Hint: A common mistake among interns and new hires is treating secretaries and clerks as being beneath them -- avoid this behavior at all costs.

Never Shun a Chance to Learn More About the Company/Industry. Take every opportunity presented to you to attend company or industry meetings, conferences, and events; participate in training workshops; and read all company materials. Hint: Meetings may appear (and actually be) boring to you, but they can often offer a good chance to increase your knowledge, network, and build relationships.

Get as Much Exposure as Possible. Some of the best internships rotate you among departments and supervisors, but if yours doesn't, don't let that stop you from tackling new tasks, meeting people outside your department, and attending company social events. The more you are exposed to new ideas and new people, the more you'll learn. Hint: Joining the company softball team (or other informal group) is a great opportunity to meet new people in a relaxed and informal environment.

More keys to internship success...