I found this straightforward advice, yet profound article over at CIGNA.

Belonging

Through contact with others, we know that we are loved and respected and that we belong. Use the following suggestions to help your child feel he or she belongs within your family.

• Show your love. Let your child know you love him or her for who he or she is, not for what he or she does. Make it a habit to show your love for your child in at least two ways each day.
• Let your child know that he or she is special. List at least three of your child's good qualities and post them on your refrigerator. Add to these qualities from time to time. Celebrate your child's good qualities often.
• Praise your child. Make positive comments about your child's behavior at least twice as often as you make negative comments (and try for four times as often). Notice your child's strengths, even when he or she is misbehaving. When you focus on what you like, your child's behavior will improve.
• Listen to your child. When your child shares something with you, give him or her your undivided attention and listen carefully. Don't give advice unless asked for it or you feel your child's safety is involved. Don't ridicule or shame your child.
• Have family times. Have regular times for the family to have fun together, such as playing board or card games. Try to have as many family meals together as possible. Don't discuss problems or concerns during these times unless it is absolutely necessary.
• Encourage positive peer experiences. Look for activities with peers where your child can feel success and acceptance, such as participating in a sport or joining a club.