-Be polite to everyone in the O.R -Be honest about your experience level if you are asked a question. -Ask questions! They are expected from you, so get the most out of the education and experience you're given. -Keep a log of all surgeries you have attended and note your role in them. -Volunteer to help. If someone will train you once in an O.R. procedure, you'll be considered a great help in every case you attend. -The stress level in the operating theater is often very high and tempers can flare. Don't take anything said or done there personally. This is not always easy, especially if a surgeon or other staff member treats you with little respect. -Be aware of sterile fields. If you accidently break one, don't freak out. Let someone in the staff place a sterile towel on the field and/or change your gown. -Be sure to slightly bend your knees while standing; this should help you to avoid feeling light-headed. -Above all... have a great time! Only a small percentage of the world's population will ever have an experience like this. Make the most of it! Source