Interviews are a totally different animal, with a totally different process—I generally spend the night before researching the firm and whoever is interviewing me, and drafting my answers for some of the questions they’re likely to ask me. (It’s always good to have a stock answer for “Tell us about yourself.” “What’s your greatest strength?” “What’s your greatest weakness?” “Where do you see yourself in 10 years?”)
Have a set description for each line on your resume—pick two or three relevant projects or deliverables that are selling points, and know how they relate to the job you’re interviewing for.
If there are real negatives on your resume (awful grades, gaps in work history, etc.) make sure you know how to address them.
It is perfectly all right to say “Wow, that’s a great question,” and take a beat to consider it. You can’t waste a ton of time, but you are allowed to marshal your thoughts.
Practice makes perfect. If your school has a career center that offers practice interviews, or if you have a mentor willing to run through some mock interviews with you, absolutely take advantage of that.
At the end of the day, be honest and true to yourself. Obviously everyone wants to put their best foot forward, but if you are straight-up lying or pretending to be something you’re not, the interviewer will know. People are actually not that good at lying, go figure.