For the phone interview I would be in a quiet place, but in a decently-supported chair just as if I was in an on-site interview. Also, I would wear normal clothing,but stray away from like pajamas or clothes that make me too relaxed. My goal would be to sit in a spot where I could focus and give everything into that interview since it might be your last chance before decisions are made on your admission's decision! Good luck. And I too am having problems coming up with questions I would like to ask the interviewer. I have done so much research on all the schools all ready I can not think of more questions...