Not unless she wears a bikini bottom so small that you can actually see the area, in which case it wouldn't exactly qualify as clothing.
God I hope not
you can definately tell by if she wears smaller bikini bottoms or not.
Nope that is impossible.
Just hook your finger on her undies and pull down a little bit and you can see if she shaves or not.
It's like most things that you can't see with the naked eye. Just ask and maybe you'll get an answer from the girl.
Eyebrows are usually a good giveaway. If a girl has well manicured eyebrows, she's usually taken care of down there.