At that age, it could go either way. That's why they make those cute little headbands for girls. Emily had some real adorable ones.
Exactly. I know some parents get offended when you call their little girl a boy (or vice versa), but babies have no features that differentiate the sexes (outside of their diapers, that is.)
It's puberty that makes the obvious outward physical changes. Until then, it's clothes and hairstyle for outward differentiation.
HOWEVER, (back to the original post), trying to claim that they are, therefore, sexless, is not only foolish, it is harmful to the child.
But hey, what are kids but the means by which parents can play out all their own issues on them?