1. Set An Example
Leadership begins with yourself. While it's important for a leader to motivate and encourage others, the ability to provide yourself as an example to others is perhaps even more essential. Through a continuous concerted effort to improve your own abilities, you will encourage others to work their hardest.
2. Don't Overdo It
Leaders should feel good about the fact that they are an important part of their company or organization. However, those in leadership positions should keep their position in context, an not come under the illusion that they are more important than they actually are. Guide those you are in charge of, don't try to become their monarch.
3. Praise
Good leaders know to hand out lots of praise. As studies have shown, carrots tend to work better than sticks. Gratitude not only motivates people to perform better, but also to work at your company or organization for longer.