Generally, children are born intrinsically motivated to be physically active. Helping a child maintain this motivation can be challenging. The feeling of fun depends on experiencing skill improvement, personal accomplishment and excitement. Adults should constantly be evaluating a child's activity opportunities. Ensuring that a child experiences physical success, freedom and fun will contribute much to promoting lifelong fitness habits.
Parental attention is one of the biggest motivators to children of all ages.
Try to focus on what they like, not what interests you. Emphasize participation rather than performance and give liberal amounts of positive reinforcement and recognition for daily activities. Remember to individualize. Each child has personal likes and dislikes. Don't attempt to force everyone into the same activity.