The Way of the Gentleman Warrior
It has been said by many that the Jedi are seen as gentlemen warriors...a balance of grace and brutal skill. Due to which, a Jedi must behave in a certain way to promote balance, as well as maintain control over themselves. It has already been mentioned that control over emotions much be kept, but there are other levels of control a Jedi must face.
Both separate from and connected to the manners each of us is taught as a child, yet greatly more impotent. A mannerism is how one conducts themselves. It could be in public, in private, or in the company of a few good friends, it does not matter. In each instance a Jedi must keep the best possible mannerism. For example, when dealing with someone else that is not being hostile to you; one should stay polite and under control. An angry person might not always calm down when confronted by another calm person, but an angry person rarely calms to a person more upset than they.
Being polite and respecting a person, while being close, are not the same thing. One's space and possessions can be honored without showing respect. Just because the polite approach did not work and has been abandoned, that does not mean one has the right to just destroy a person's property.
Patience is a virtue, as it is said. A Jedi must know patience, because not all things are instant, even within the Force. Patience is needed both in a Jedi's training, and in his duties in the everyday world. Many of the people a Jedi will deal with will be a hurried person, trying to get all they can while they can...a creature without patience. The Jedi should be as a cat, watching its prey creep ever so slowly towards them. A cat does not get impatient and run wildly at their prey, but rather waits until it nearly walks right into their hands, and pounce. This patience paid off. The cat got their prey, and they did it with as little energy needed. This is not to say everyone we encounter is our prey, but the patience is universal. Haste makes waste, and will lead you down a road no man ever need see.
This is more of a code of how to dress rather than what to wear. Of course, despite all the teachings of "don't judge a book by its cover" we tell one another, people normally judge by first appearance. In order to cause a certain desired effect amongst people, on must look as if they belong. If going in with someone of higher social standing, on should look the part. A slob will not foster the type of respect a Jedi would need from those they help, where as someone more presentable would. This can be done to where you look as if you belong while standing out, a trick of fashion...or it can be done by falling into the norm and wear the dress of all others, in order to blend into the crowd.
Humility is something many of the Jedi have been sorely lacking over the past, and it has ultimately been their undoing. A Jedi is a creature of the Force, merely a spec of nothingness in comparison to their creator. To feel as if you are better than those around you, even fellow Jedi...that is to betray the very Force itself. A humble man is one that can ask for help when it is needed, and they can also give help when asked. They are not too good to explain things to those who neither understand, nor terribly need to understand.
A Jedi should hold an intense sense of honor and duty. Their first honor should be to the Force, then to those who make up the Force, and lastly to themselves. The Force gives all life the ability to be, and as such, then uses that life to sustain itself. Being a child of the Force, it is the duty of the Jedi to act in the best interests of the Force itself. A Jedi, when their mind is quiet, will "hear" the will of the Force. And out of their loyalty to it, should feel obligated to act upon its will. When the Force has taken one to being under the command of another, their duty is to that person or group. If a Jedi joined one off the many forms of the Armed Forces, despite their geographical location, it is their duty to follow orders, unless the Force tells them otherwise. Lastly, a Jedi should feel a duty to themselves. If they are not under the command of another, and the Force has willed them to make the choice of which path to take, they must be true to themselves and what they wish to be. Duty does not mean one should be blindly loyal to anyone. Through the Force, knowledge is acquired, and that knowledge should be used when dealing with anyone, no matter how drawn to them you may be. Remember, the Jedi's first loyalty is to the Force, and its will. The previous was only an example of how a Jedi's sense of duty should ultimately be. True, no one is perfect. We may be Jedi, but we are still human, and we will all make mistakes. Also, a single Jedi's sense of duty might be different than what is listed above. As long as their sense of duty and loyalty feels right to them, then that it all that matters.
Sanctity of Life:
Closely tied to the Jedi Ethics of Defense, a Jedi must value life in all forms, no matter how grotesque or despicable. To take a life is to damage the Living Force, and make all Jedi, all life on this plane of existence, weaker. Such a crime against the Force may at times be necessary, but should always be help as a last resort. The Ethics of Defense teach us that, and if one is truly in tune with the Force, they know this to be true.