Gay male speech [Wikipedia]
There seems to be something to what I think most of us would consider the 'gay way of speaking' - As per the Wiki page, this is confined to NA, and, iirc, it probably has roots in a way for gay men to identify one another in days gone by where it was, in fact, dangerous to do so (not that gay men and women are now safe due to their orientation, but things are better these days, obviously, in most developed countries).
In my own experience, it's as other people have pointed out - You tend to notice the flamboyant queens and hardcore lesbians, but the reality is that the majority of people behave as they do, for an enormous variety of reasons, and I don't think sexual orientation is a big factor here, in terms of general outward presentation.
In other words - they are AMONG US. Hide the children!
Also, for what it's worth, I have quite a few 'womanly' womanly traits (or so I'm told), and that's fine - If we need to create generalizations of gender roles (whether this is necessary is an entirely different discussion), etc, each person is going to be different, and there are going to be overlaps, no matter your orientation or gender. It must be very exhausting trying to fit yourself into a neat box that society has made for you, as I think many people are forced to do.
We're complex animals, and should all have the freedom to do who we want, when we want and how we want, and present ourselves in any manner we see fit. Provided, of course, this is all between consenting adults.