Try this exercise. Find a person to practice with. First, let them take the role of listener and you take the role of the speaker. Share with them in five minutes what you know about active listening. Have them repeat it back to you. Then switch roles. Now, give feedback to each other on the listening skills you both used and your verbal and non-verbal communication. How did it feel to have someone take five minutes to truly listen to what you were saying and try to get the gist of what you were feeling? How did it feel to truly listen to someone else?
Practice active listening frequently and when you are in relaxed situations so that when you are under stress it will be an easy tool for you to use. Active listening can reduce conflict and increase a sense of trust. Give it a try.