exactly at what what point is one considered LGB or T ?

LG and B have nothing to do with gender. You can appear masculine of center and be a heterosexual woman, and you can appear feminine of center and be a heterosexual man. Gender presentation does not always reflect sexual orientation.

One is considered "LGB or T" whenever they decide to place that label on themselves.

It has nothing to do with femininity

Sure, some poor little queans have swallowed all that hetero propaganda about their being half woman, so they put on a pose and live that lie.

Most gay men are just that, men.

If he is a womanly man, has broad hips, a rounded tummy, pendulous b00bs and wobbly buttocks, and if he lisps, he's probably hetero.

Aristophanes voiced an opinion in Plato's “Symposium“ when he said, "[True men] show their masculinity throughout their boyhood by the way they make friends - becoming men, and the delight they take in lying beside them and being taken in their arms. And these are the most hopeful of the nation's youth, for theirs is the most manly constitution."”:

.Men who are a section of that double nature which was once called Androgynous are lovers of women; adulterers are generally of this breed, and also adulterous women who lust after men: the women who are a section of the woman do not care for men, but have female attachments; the female companions are of this sort. But they who are a section of the male follow the male, and while they are young, being slices of the original man, they hang about men and embrace them, and they are themselves the best of boys and youths, because they have the most manly nature. Some indeed assert that they are shameless, but this is not true; for they do not act thus from any want of shame, but because they are valiant and manly, and have a manly countenance, and they embrace that which is like them. And these when they grow up become our statesmen, and these only, which is a great proof of the truth of what I am saving. When they reach manhood they are lovers of youth, and are not naturally inclined to marry or beget children,-if at all, they do so only in obedience to the law; but they are satisfied if they may be allowed to live with one another unwedded; and such a nature is prone to love and ready to return love, always embracing that which is akin to him. And when one of them meets with his other half, the actual half of himself, whether he be a lover of youth or a lover of another sort, the pair are lost in an amazement of love and friendship and intimacy, and would not be out of the other's sight, as I may say, even for a moment: these are the people who pass their whole lives together; yet they could not explain what they desire of one another.

First of all your direct question deals with going beyond curiosity and physically engaging with one or both genders.

To be as respectful as I can, ones effect and affect may be judged wrongly. I will say this however the choices are not always, or usually ours. They begin genetically, hormonally, and in conception an X -Y factor is established.

I know a couple of very gentle straight men and there are some VERY macho gay dudes. Like these:

http://www.afterelton.com/other/2009/12/gareth-tho...

gay cop/marine http://www.youtube.com/watch?v=IC-ZnayVEX0

Being gay is not about having "too much" of either gender, it's about being attracted to someone who is the same sex as you are.

It all depends on sexuality and how one identifies, not on how one acts.

A guy can be very feminine but still identify as male, ergo he's not to be considered transgender.