Fix Yourself First
I think one of the basic qualities to be a decent Human being are to respect others opinions or beliefs that not the same with you. Have also a proper behavior to be respected by other people and fix your attitude and always keep your self with a good manners. when it comes in nature or place where you are in. you have always keep your trash or keep the place clean because you and many people are with the same place.And when it comes to studying avoid cheating and focus only in the subject or lesson to avoid issues or problems.