Integrity is doing what you know on the inside is right. Be honest with yourself, do what you know is right even if you’re not seen. do not let the world's ideas forcefully influence you as an individual. People these days will shove their opinion in your face and expect you to accept it. But if you think it is wrong than that is the right choice. People these days are under the influence that whatever the system says that it has to be a belief that you must go along. If you respect your opinion and stick to it because most people say you're wrong, or a bully because of your quiet opinion then that is Integrity.