I got a senior as my interviewer. He told me I didn't have to be nervous
He asked me questions that took me a while to think about, so I kind of felt like that interview did not go well.... But I got accepted, so, who knows? :O
You do not need to bring a transcript, but I brought a "resume." I didn't give it to him right away. He saw I had something in a folder, and he asked me about it, so I said "I've prepared some information about myself." <--I got that from some advice from CC. I guess it's so it doesn't have to live up to the expectations of a regular resume.