I personally don't feel there is such a thing as 1 way all FM should act. There are however qualities that are accepted in general terms to be common among Gorean FM. Not all castes follow the same set of ideals not to mention the fact that Goreans like Earth humans have a wide range of personalities and temperaments. 

Gorean FM come in all types. To say there is 1 way all gorean FM should act is not only ludicrous but not supported by the evidence of the books. There are on Gor men that follow the ideals of the Warrior codes as well as some who gold is more important then all else. The Warrior will of course have different values then the Assassin, or the Fisherman. All men can fight but a warrior is going to be more highly skilled in the use of weapons. A warrior although skilled in weapons and strong   would not be able to handle the job of a wood carrier whose body is trained and strengthened for the work he does.    

An interesting contrast here is the Gorean master/slave relationship. Men tend to be extremely interested in things they own, and tend, usually, to be quite fond of them. Owned women do not form an exception to this general rule. The slave girl is commonly desired and prized by her master; she is one of his treasures. The Gorean master, interested in her and attentive to her, wants to know everything about her, in her emotions and feelings, in their feminine, lyrical detail. Conversing with a lovely slave is one of the many pleasures of owning her. It is almost impossible for a girl to keep her thoughts or feelings from her master. He knows her too well. Most girls are extremely responsive to their masters, and love them deeply, with that incredible love which can be known only by an enslaved woman, that love which a woman can accord only to a man who is her total master. Yet I would be remiss did I not mention that even the most vital, animate slave, delightedly conversing with her master, knows that at a mere snap of his fingers she may have to tear aside her garments and serve him as a chain slut. She is owned. Too, many slave girls are kept by men who are harsh and cold to them, who despise them as mere slaves. These girls, too, of course, must obey. They, too, of course, must perform perfectly for their masters

p. 99, #14 Fighting Slave of Gor

One of the pleasant things about owning a slave, " I said, "is the opportunity to converse with her, to listen to her, to hear her express herself, her feelings and ideas. One can learn much from a slave. Many slaves, like yourself, are highly articulate, clearly, trenchantly and lyrically. It is great pleasure to talk with them." "I see", she said. "Then when one wishes," I said, "One puts them again on their knees" Beasts of Gor (Book 12) page 203

"Did he think that the color of a fellow's garments was what made him a warrior? Surely he must realize that one not of the warriors might affect the scarlet, and that one who wore the grimed gray of a peasant, one barefoot, and armed only with the great staff, might be of the scarlet caste. It is not the uniform which makes the warrior, the soldier." (Magicians of Gor, p.129)

"Tears are not unbecoming to the soldier…The soldier is a man of deep passions, and emotion. Many men cannot even understand his depths. Do not fear your currents and your powers. In the soldier are flowers and storms. Each is a part of him, and each is real. Accept both. Deny neither." (Guardsman of Gor, p.238)

"Generally men of Earth will not listen to women. Their minds are closed on the matter. Being men they think all human beings are the same as themselves. It is a natural fallacy. Masculine women, those unfortunate creatures, in their frustrations, exploit this weakness in the men of Earth. They tell them what they want to hear. This they then take as evidence confirming their preconceptions. It is sad that the true needs of women must then be sacrificed to the ignorance of men and the political and economical ambitions of hirsute frustrates." pg 237 Beasts of GOR

It is not uncommon for masters to pride themselves on the depth with which they know their slave girls; this depth is far greater in my opinion than that with which the average husband of Earth knows his wife; the slave girl is not simply someone with whom the man lives; she is very special to him; she is a treasures possession; he owns her; he wants to know profoundly and deeply, the background, history, the mind, the intelligence, the appetites, the nature and dispositions of his lovely article of property; this knowledge, of course, puts her more at his mercy; by making it possible for him to manipulate her feelings, exploit weaknesses, drop asides, etc., she in the helpless condition of slavery, it gives him greater power over her. For example, it is common for a master to force his girl to speak at length and in detail to him of the secret sides of her nature, explaining and elaborating on her fantasies; if she is literate, she may be forced, naked and collared, on her knees at a small table, sometimes with her ankles shackled, to write them out; this supplies the master, of course, with abundant materials which may be used by him to make her further and more helplessly his; sometimes the girl attempts to deceive the master; it is not difficult to detect in authenticity in such matters; she is then beaten; too, she may be at times ordered to invent fantasies, sometimes of a certain type; these, too, for she has invented them, are, to an astute master, instructive; these intellectual, emotional exercises, performed by the girl under the condition of slavery, particularly if coupled with an enforced exercise regime, posing under male surveillance, and such, can do much to sensitize her to her collar; they awaken her body, and, of equal importance for the Gorean, though not for the Earthling, who sees sex with the perception of a hippopotamus, as a matter of body rubbings, her fantastic imagination and mind; she becomes curious, soon, about the deeper implications of what she is, a mere article of her master's property; then, with authority, with assurance and power, to the depth and height of her mind and imagination she is taught; the slave girl experiences a paradox of freedom; the free woman is physically free, but miserable, fighting to be what she is not; the slave girl, physically in bondage, even to the collar, sometimes chains, is given no choice by men but to be totally and precisely what she is, slave; such women, slaves, interestingly, are almost always joyful and vital; they are paradoxically, in their feelings and emotions, liberated; they are not pinched, not psychologically restrained; why this should be I do not know; to see such women , their heads held high, their eyes bright, their bodies , movements, beautiful, as no earth woman would dare to be, is quite pleasurable; **some of them are so insolent, so proud of their collars, that I have cuffed them to my feet, to remind them that they are only slaves.** pg 42-43 Tribesmen of GOR