Casual if you know the professor. Be aware of projects and publications in process. Technical skills are very helpful. Know the ins and outs of the lab you're applying to.
Interview questions [1]
Question 1
What skills do you have that are pertinent to this position?
I applied through college or university. I interviewed at The Johns Hopkins University (Cerritos, CA) in Jan 2021
Interview
I interviewed for the summer internship at John Hopkins University Applied Physics Laboratory. The process went very smoothly, with the interviewer contacting me over email and setting up a zoom meeting. They only asked a couple technical questions and mostly wanted to know if I would be able to relocate to Baltimore.
The interview focuses on technical elements and skillset one possesses , however elaborating on administrative and leadership experience helps. Building prior experience into the specific responsibilities of the role helps give a better idea of the candidate.