An athlete engages in some minor misbehavior. how should the coach respond to the athlete's misbehavior?

Public confrontation must be avoided as possible. The coach can remove the athlete from the practice or competition and misbehavior must be addressed privately. Athlete can have time to reflect on what did they do. This will allow realization on their mistake and the situation happened. With this, they will not loss their self esteem and confidence which is needed for their future games or during practice. Athletes are intelligent and they usually address if they have did a mistake.