The influence of our actions

Just how does our actions influence others? It is true that actions speak louder than words. Here David backed up his words with his deeds, which is good because our actions can lift up others or bring them down. What we do will effect ourselves, those around us and even our enemy whether we think it can or not. Will we be that one person who will stand for God and affect the lives of those around us? What will be our legacy that we leave behind?