What is the best way to convince your prospective employer while interviewing in DUBAI?

Not only in Dubai but everywhere in order to secure your Potential Job you need to be well dressed, and try to have a good body language, try to be a good listener at the interview.
Listen to their questions calmly and answer them politely, with a positive smile on your face.
Try to have an eye contact during the whole interview.
When they ask you about yourself try to tell them exactly what you are and don't lie, Avoid exaggeration.

First you must know everything about the job you applied for and the requirements then you can look for the company profile as well to have a little knowledge about the company you looking forward to be a member of its working team , then come the normal procedures as well dressed , shaved , concentrating , sleep well the day before , eye contact with your employer, body language , be before your time10 minutes .

In Dubai its like all depends on references they dont see the Job seekers ability for the job.