i) Talk to them and let them know you love them.
(ii) Avoid putting any pressure on them academically and athletically.
(iii) Be a good and confident role model to them.
(iv) Have occasional conversations with them about values, self-esteem and self-confidence. Let them know that they can be more confident.
(v) Make sure they are surrounded by positive people.
BONUS
(vi) Take help from an expert in building your child’s self-confidence.