Gain experience working in a new environment, face those challenges daily and learn how to deal with different customers in different areas deferential methods, customers are often not the same, so we need to learn many different ways to help them out make them feel better, try to sell good products and value for their money.
Have a nice personality
Be able to help a customer with what they are looking for and be able to match them with 'perfect partners'
Know what your talking about
Be good with measurements