On the day of your IELTS test you must:
Arrive early so that you have enough time to check in and move through all necessary security procedures.
Bring your ID. You must have the same identification that you provided on your IELTS Application form. If you do not have the correct identification document, you will not be able to take the test.
Try to stay calm so you can do your best.
Listen carefully to the test supervisor's instructions. If you cannot hear or are unsure, raise your hand and the supervisor will assist you.
Raise your hand and tell a supervisor if you have a problem. For example, if you feel that your work may be affected by illness or any other reason, you must raise your hand and tell a supervisor.
Remember:
You may not lend anything to or borrow anything from another person once you have entered the test room.
The supervisor cannot help you with any of the test questions.
You must not talk to, or disturb, other candidates once the test has started.
You are not allowed to eat or smoke in the examination room.
You must not reproduce any part of the test. You will have your test results withheld and be liable to prosecution if you do this.
Do not take any materials from the examination room. This includes test papers, answer papers, working paper or any other test materials.
You cannot leave the examination room without permission from a supervisor.
If you are caught breaking any of these rules, your test result will be withheld and the institution or professional body you may have nominated to receive your results will be notified.
Source: Test Day Advice by IDP