Ethical Behavior Choosing actions  that are "right" and "proper" and "just." Our behavior can be right or wrong, it can be proper or improper, and the decisions  we make can be fair or unfair. 
  
Other /More definition:
Ethical Behavior means choosing actions that are "right" and "proper" and "just." Human behavior can be right or wrong, it can be proper or improper, and the decisions humans make can be fair or unfair.