I'm late to this thread, but speaking as someone born and raised male, I guess I did have some feminine impulses through my life which I suppressed, but it was almost subconscious, because I never had any conscious inkling that I was transgender.
So, since the awakening/eruption/crisis that was realising that I wanted to be, if not a woman, then certainly more like one of them than a man......I suppose it's been a case of "digging up" the womanly things that I suppressed. I never wanted to be a stereotypical gay (though I knew I preferred boys), so I didn't let myself act or speak in a certain way. Now I'm encouraging myself to act and speak in those ways. Moving in a fluid way, walking with my hips, complimenting people on their appearance, asking women where they bought their clothes, using a girly speech pattern, flapping my wrists, crossing my legs (yes, I'm a camp ->-bleeped-<-) - these are all simply habits that I've learnt, which on some level I always wanted to learn; and crucially, they are all completely optional for MTF people, a fact that is often forgotten. They make me happier. They feel like things I should always have done. That's all I know. It's a bit like when I went veggie - I knew I should've done it about ten years ago. Why did I spend ten years being boyish and eating meat? Lol.