You look at its body parts.
A male is equipped like a boy, a female is equipped like a girl.
they tell you at the place you bought it from.
Spider color
go to this website http://www.huggablepets.com/huggablepets/sexing.shtml
Just look underneath the boy's genital is a "V" shape and the girl's own is kind of a "u" or at times an "o"
If its A pet, it does not matter, Just claim its A boy or girl, and name it, But if you really want to know, you have to take it to A vet, the sex organs are inside the anus.
you chose if it is a boy or a girl.
how do i tell if my my turtle is a girl or a boy?...
you cannot tell if the caterpillar is boy or girl
A girl
can you tell if a fish is a boy or girl by the tail
its harder for a boy to tell if a girl likes him
YOu can not tell the difference between a girl or boy starfish.