You want your product or service to work. You don't want people rejecting you from jump street. Listening to your customers and their needs is essential and the key to your business success. Another words, don't put the cart before the horse. Pay attention to people as they will give off key words and phrases during the course of the conversation letting you know what they desire.
Don't be so quick try to sell them something either because believe it or not, customers silently observe your actions. Focus on building and sustaining a quality-meaningful business to customer relationship and focusing on their needs through valuable customer feedback. Putting people first before your needs will keep you in the drivers seat for success and continued business growth.
Stay humble and hungry in your entrepreneurial endeavors.