First impression is very important to the future of any relationship, and when you are making it your business to have nothing but good relationships, that first impression is vital.
What you wear plays a very important role in what people think of you when you first meet (and each meeting thereafter) because what you wear and how you wear it can speak volumes (subconsciously or consciously) to everyone you come across on a day-to-day basis. Arguably the most important thing to keep in mind when deciding what to wear is making sure it fits your frame nicely and portrays your professionalism!