I am really short too - even for a girl - so I am miniture for a boy. Alot of ppl ask me if I am a jockey - I am actually thinking about taking it up, just to stop the questions! A few guys that know me only as a guy call me Pocket Rocket - cause I am so tiny but they never assume Im a girl or anything like that.
I often get mistaken for a teenage boy (even though I am in my late 20s). My mother even complained that I looked like her 15 year old son!
In a room full of manly men - I sometimes feel inadequate, but a pub full of gay-boys and I fit right in - lol. So I guess it just depends. I try not to let my height worry me too much and just roll with the flow that I am a young looking guy