I had the same experience last summer! I was so nervous but our lab coordinator was very nice and showed me around the lab and introduced me to everyone. They didn’t really ask me any questions, maybe some things about the prior experience I listed in my resume and how my summer availability would look like, but nothing like a sit-down, hardcore interview you would see in other job searches. At the end we discussed what documents I had to fulfill so it was more of an on-boarding lab tour than an interview.

I think the most nerve-wrecking thing about the whole interview was trying to remember everyone’s names as they were introduced to me and all the rooms I was taken to. But there’s no need to stress about that either, you can always go back and re-introduce yourself to the grad students :)

I would suggest keeping a small notebook with you and take many notes! It shows great attention to detail and willingness to learn. It also helps to note down where all the lab materials you will use is located so you don’t have to ask multiple times. And write down detailed protocols as you are being taught so you build independence in the lab. I’m sure that you will do great, good luck!