When you do something nice for someone else, you make that person happy, but you feel happier yourself too. You feel closer to the other person. That boosts your confidence. It doesn’t need to be anything big.
Wendy, mother of Nikky (3 years old):
Yesterday I was at the supermarket. I saw a lady on a mobility scooter who was trying to get something off the shelf. She was struggling. I helped her and asked her whether she needed anything else. She was so happy I helped her that it made me happy too.