Be a sponge
Ask thoughtful questions and soak up information. Actively listen and take notes when receiving instructions. Show initiative by researching questions first through available resources and then ask.
Quality over quantity
Make sure you do a self-review of your work. Don’t rush onto the next task to show how much you can do. Take the time to do a good job. Show that you pay attention to details by following instructions and care about quality. Do a great job even when you’re handed tasks that don’t excite you.
Have a positive attitude
Be enthusiastic. Be willing to take on any task assigned no matter how small. In certain positions, excelling at the basics can lead to getting more responsibilities.
Don’t use internet (unless it’s part of your job) or text or sametime throughout the workday. You may be confident that it doesn’t affect your work, but experienced managers may feel otherwise. Especially this early on, your manager’s opinion matters most.
Build your network
This is your chance to build relationships with people at all levels. Get to know other interns and they'll grow with you in your career. Get out from behind your desk and get to know people in the office.
Remember that an internship is just an extended job interview. Don’t take it for granted. Even if you work in a casual setting, you need to be cognizant of the impression that you’re making. Even if your co-workers make regular conversation about life outside the office, certain things should stay out of the office.
Find a mentor, be a mentor
Find someone you look up to and want to emulate. Get to know them and learn more about their career path and choices they have made. You also have the opportunity to be a mentor to others when you're back on campus. Share your internship experience with university peers or friends and help them with their career choices.
Understand office norms and culture
Observe how others in the office act and mirror that. If employees modulate their voices when others are on the phone, modulate yours. If they’re on time for meetings, you should always be on time too. Is there a specific way of doing your assignments (say a preferred font or format)? Figure the norms out and follow them. These details may sound trivial, but they’ll help you stand out from other interns.
Be receptive to feedback
Every so often, ask your manager how you’re doing. What could you do differently? What could you do better? Are you meeting the goals? Make it easy for them to give you feedback that will help you grow. Once you have that feedback, use it.
Continue the relationships you’ve built after the internship ends. The truth is that sometimes getting an interview or job is about who you know or about what your former managers say about you. So keep in touch. Connect on LinkedIn or e-mail. Continue to stay connected to the firm once you're back on campus.