Speaking is the last part of the IELTS test. The interview lasts for approximately 11-14 minutes. The examiner starts the test by introducing him or herself and confirms the identity of the candidate. Being able to talk naturally in a constant flow smoothly and confidently without major pauses is important to score high in IELTS. 
Part 1 would be a series of personal questions; therefore, personal answers should be given. The examiner will ask general questions about familiar topics such as family, friends, work, studies, hobby, and interests which will last around 4 to 5 minutes. The Speaking Test assesses the candidate’s ability to communicate effectively in English. Make sure you give a clear and concise answer. Speak in logical sequencing. Use a variety of words in simple and complex sentences accurately. Avoid getting too carried away on answering the questions in part 1.
First impressions are very important. You should always reply with an answer that is informative and as interesting as possible. Aim to create an intelligent answer. Do not simply reply yes or no to a question. In order to present yourself in the best way possible, you should try to sound positive.
Ask yourself these questions when doing some practices:

1. Does your speech flow?
2. Can you be easily understood?
3. Do you use a reasonably wide range of vocabulary?
4. Do you use proper English grammar?
5. Do you use the right pronunciation?

Remember! It is better to give simple and accurate answers than complex, inaccurate answers. But it does not mean a simple answer is only one-word answer because it will prevent you from showing your ability to speak well.