Final answer:
To display openness when listening, you can use facial expression, posture, and removing physical barriers between you and the speaker.
Step-by-step explanation:
Openness can be displayed when listening through multiple channels, including facial expression, posture, and removing physical barriers between you and the speaker. These nonverbal cues show that you are engaged and attentive. For example, maintaining eye contact, having an open posture, and removing physical barriers such as desks or tables can all contribute to displaying openness while listening.