for example in customer service you should be: Attentive The ability to really listen to customers is so crucial for providing great service for a number of reasons. writing - here you i usually make sure that i give a clear work to the customer so that he or she can come back again. also in designing i make sure that every thing has being designed well. slaes when it comes to sale i consider the following: Buyer-Seller Agreement. ... Active Listening. ... Communication. ... Qualification Questioning. ... Time Management also you should have skills in: an outgoing and likable personality. confident and authoritative speaker. strong presentation skills. confidence in your own abilities. a high degree of self-motivation. a passion for selling. personal ambition. resilience and persistence.