The document discusses listening as an active mental process that involves receiving, understanding, and responding to spoken and nonverbal messages. Effective communication requires both speaking and listening. While hearing is a passive physical process, listening requires choosing to mentally engage and apply skills like focusing on the speaker, using verbal and nonverbal feedback, and ensuring understanding through feedback. Barriers to listening include distractions, assumptions, biases, and not focusing on understanding the meaning beyond just the words. The needs of customers center around feeling valued, respected, appreciated, understood and comfortable.