Confidence in Your Product

First off, I would like to say your clients can tell immediately if you believe in your product, brand or concept that you are selling.  If you don’t have confidence in yourself and your ability to do a great job for your clients, you will not give your clients the confidence he or she needs to believe that your advertising and marketing results will deliver and exceed their expectations.  
It is very important to remember that your product and work ethic speak for itself.  Your clients choose your agency for many reasons.  Go above and beyond to show them why they have made the right choice.