I don't wear make up half of the time, and sometimes I'll go out wearing boy clothes or whatever -- like when I went to the local gay club with my girlfriend. And, no, I can't pass as male. But I can pass as a butch-ish lesbo.

I'm weird, I'm normal, average girly most of the time, but sometimes I'll go out looking more butch. I went though a phase with a chelsea hair cut and looked really butch lesbian... I don't think anyone called me a guy even with that hair cut. LOL (Chelsea cut is long bangs in front, and shaved back... I then let it grow out a bit, and spiked the back, shortened the bangs a bit.)
Although the hair cut was fun, I'm now growing it out more and looking more fem... I like to do the soft-butch thing sometimes, and look all Shane like (From the L word). Just 'cause she's hot. I add my own style to it. My GF cut her hair short recently, too. So, she's going shorter and I'm going longer now. LOL
But, yeah, I don't think I can pass as male.
In my head, however, sometimes I think I look boy-ish and all that. The world is different, however, 'cause in reality I don't get any issues -- but my head is completely different. I see things others probably don't see. I don't know *shrugs* I'll go on about how horrible my voice is although no one has ever called me sir on the phone and no one has said that I sounded like a boy. But, in my head, I think my voice is awful.
On that point (sorry, slightly hi-jacking this thread), my gf was wondering who was Trans on my FB and i went through a through and there were a lot of trans ppl that she wouldn't of ever thought was trans. Yet, all of those ppl all has some sort of self-conscious though that they didn't pass, or they look like men in dresses, and so on. And, she's pretty honest about it, and wasn't just pretending.
I also think trans ppl can recognize other trans ppl 'cause we know what to look for. I also think that we beat ourselves up way too much. I know I go through times like that, especially when I'm depressed. A lot of ppl do that. Trans or not, we all find sometime to beat ourselves up and over analyze what we think are flaws. Sometimes, however, we just have to pick ourselves up and keep going and not let our self-beatups rule our lives.