How to be fluent
 
Concentrate on the planning and organization. These help you to control your nerves and to be fluent,. If you go into the exam unprepared, it will make you nervous.
 
Concentrate only on the part you are doing. Forget about the other parts of the exam.
 
Eye contact
 
Keep eye contact with the examiner, even if he/she looks away or makes notes. If you do not usually maintain eye contact in your culture, practice speaking while keeping eye contact before the exam.
 
If the examiner is writing, looking away or not smiling, this does not mean that you are doing badly. It just means the examiner is doing his/her job.