"Companies depend on sales consultants to establish trust between clients and companies through their marketing, interpersonal, and customer service skills. Expect to draw heavily on previous experience during an interview. Popular questions ask about situations in which you have changed a client's mind or demonstrated strong interpersonal skills during challenging times. You may also have to demonstrate your sales skills by pitching a product to the interviewer."
Sell me this paper clip (or any other various object they may have)
Ask probing questions to see what the customer is looking for in the product and then sell that feature. ALWAYS upsell additional products!!! They love that!!!