Put a number on the skills so that you can structure your sales interview answer around this. For example, "I think the 3 most important sales skills are ...". Rather than referring to specific sales techniques focus on competencies and abilities that every successful salesperson needs, such as:
► the ability to adjust your approach to different people and situations
► the ability to ask the right questions and listen carefully
► the ability to deal with disappointment and rejection
► the ability to stay motivated with a high energy level
► the ability to plan and prepare
► the ability to influence and persuade
► the ability to negotiate and reach agreement