Besides the external appearance, show that you are a trustable person and you will succeed. What people wants to find is people self-sure of themselves, and this becomes them trustable, and when you are trustable, all businesses can be made, of course! Be clear, be open minded, learn to listen, do not interrupt, and talk confidently so you can be heard with attention. Head up and straight walk and you own the world, my friend!!!!!
Best regards Carmen