Always work on being a good listener. Many times, people will need a certain healing that will come only in the form of a listening ear and a caring presence.
Just this week, for example, after a full day of work I stood with a man for more than three hours and just listened to him as he talked about the woes of his marriage. We stood together on a concrete floor until past 11 o'clock at night simply because he needed a listening ear and a caring presence.
It is rare indeed to find someone who not only listens, but listens well. Listen closely, carefully, and intently when others are talking to you. It will not only endear you to them, but also add to your reputation and character as a close and trusted friend and confidant.