A salesman uses customer service, marketing knowledge, and interpersonal skills to promote products or services. You can work as a salesman in any industry that sells products. Responsibilities in a sales job include developing leads, pitching to potential customers, creating promotions and strategies to increase sales, training reps in customer service, attending industry events, and meeting with upper management and presenting reports or updates. You may sell both products and services in different environments such as on a sales floor, in a retail setting, or at trade events.