Kelli, Seth and I interviewed candidates for the Senior Experience on Wednesday.
Here are a few take-home tips:
Tell and show. In the context of a job interview, telling me that you take the initiative only has credibility if you back up your claim with examples.
Prior to your interview, prepare stories to serve as evidence for every claim you intend to make.
Be on a mission. Pursue your vision. Interviewing people who do not have any idea of what they are looking for in a public relations internship or job is like spending time with someone who says, “I don’t know; what do you want to do tonight?”Get inspired. Be up to something. It is okay to still be figuring things out in class, but at an interview, show me your vision and express enthusiasm for it.
Research the job you want. If you are seeking a job at public relations firm, know the practice areas that interest you and find out who the clients are.
If you are applying to the Senior Experience, know who you want to work for and why. Give me more reasons than choosing a company because it is a big brand. This is a good place to show that you have done your research.
Proof printed copies of your materials. Your writing skills and attention to detail will show in your cover letter, resume and portfolio materials. Your materials should be flawless.
Resource:
The PR Post 
My two cents…
You will constantly be judged in any employee/employer interaction. Potential employers want to see how you handle yourself in a variety of situations. While all the above is very sound advice, you must also make a good impression in thought, word, and deed. Practice networking with all types of professionals and age groups now. Learn to sell yourself both overtly and in more subtle ways.
I agree with your points and I also wanted to add something from a friend’s experience this past week. She had a 45 minute interview with a gentleman who never made her feel comfortable during the entire interview. The most excited he got was when the interview was finally over he remarked, “Wow, we got done early this is great!” She thought for sure she didn’t have a chance, but Friday they called and offered her a job. Just because someone interviewing you might not seem engaged or excited about what you are saying, do not get discouraged! They might just not be a warm person or they may be incredibly busy. If you stay friendly and interested, you might be surprised with the result!
Les, thank you for adding your insight. Practicing through networking right now is a good idea.
Kelsey, thank you for sharing your story. I have a former student with a similar experience, who recently landed an entry-level job in the professional sports industry. It is best to not evaluate how the interview is going until later. Constant evaluating prevents people from being in the moment, which undermines their performance.