The test is 11-14 minutes long and involves you speaking to a native English speaker who is trained to assess your spoken English against IELTS criteria. The test is also recorded. There are three stages to the test:  

Part 1 (4-5 minutes)
   You answer short questions from the examiner about yourself and everyday situation. Or you will be asked to talk about your personal situation (family, job, university study, etc.)

Part 2 (3-4 minutes)
     The examiner will give you a card with a topic on it and you must talk for between one and two minutes based on your own experience. The examiner will give you a pencil and a piece of paper and allow you one minute to write notes in preparation for your presentation.

Part 3 (4-5minutes)
     You discuss some general but more abstract topics with the examiner that are related to the Part 2 talk. Part Three of the speaking test is the most important part because it is in this part of the test the examiner establishes your final speaking score.

ON THE EXAM DAY   
Follow the examiner's instructions & listen carefully. Make sure you speak clearly and answer only the questions that you are asked.
The examiner will know if you have memorized answers and you will loose marks for this.