S - Square-on Face the other person square on. If you're turned away, you won't give the impression that you want to listen.
O - Open-posture Folded legs, and particularly folded arms can be subconscious signals that you really don't want to hear what the other person has to say.
L - Lean-towards Lean slightly towards the other person. This indicates an interest in what they're saying. Leaning away from a person tends to indicate disinterest.
E - Eye-contact Maintain normal eye contact with the other person. If you keep your eyes down, or keep looking away, you can give the impression that you're not a comfortable or willing listener.
R - Relax Don't be too formal or stiff. A relaxed posture suggests that you're comfortable in the role of listener, and ready to hear everything the other person has to say. Start practicing your listening body language and SOLER now, and you will see the improvement of your interpersonal skill and relationships both on and off your job.