Dress professionally. Being overdressed is better than being underdressed. It is the first impressions and lasting images others have of you. When they see you again they may not remember anything about your previous meeting other than a good impression of you by your appearance. So what is your appearance telling others? What first and only impression of you would they take away from that first meeting? What does your daily appearance suggest to others?
You should dress your best to present the best of yourself. You will look competent and ready. You will look like you should have respect given to you and that you have the knowledge to show respect to others.
Arriving anywhere a bit better dressed gives you an edge while being underdressed might do just the opposite and make you feel less competent or of less importance. Men should always wear a jacket during the day and the least casual shirt you wear should always have a collar. Make sure your pants are not faded, worn or ripped. A jacket or tie is easily taken off if that is necessary to better fit into your social or work network. You are still looking your best in a wrinkle free shirt and trousers.
“Men judge more by the sense of sight than by the sense of touch, because everyone can see but few can test by feeling. Everyone sees what you seem to be, few know what you really are; and those few do not dare take a stand against the general opinion.”
Your personal appearance and how you present yourself to others matters at all time. Does your appearance suggest you are at your best? Does it command respect?
“Always have your clothes made of the best materials, by the most accomplished persons in their business, whose services you can command, and in the prevailing fashion.”