The best way to get your children to do what you want is to set an example. So, to help them learn to appreciate the people and things around them, begin by thanking them. You can thank your children for listening, showing good manners, helping you with chores, or working hard on schoolwork. If you haven't thanked your children by bedtime, do it then. They will fall asleep feeling good about themselves and you.
Source: The Parent Institute