Be other-directed; focus on the person communicating
Follow and understand the speaker as if you were walking in their shoes
Listen with your ears but also with your eyes and other senses
Be aware: non-verbally acknowledge points in the speech
Let the argument or presentation run its course
Don't agree or disagree, but encourage the train of thought
Be involved:
Actively respond to questions and directions
Use your body position (e.g. lean forward) and attention to encourage the speaker and signal your interest
Follow up activities