Maggie is usually always referred to as a girl, which she is. I guess because she's small and when I take her out she gets to wear pretty collars and frilly girl stuff. Grant I suppose could be mistaken for a girl because of his bark but he looks like a boy to me and he has the ummm well....necessary equipment to be a boy. Sadie was called a "him" at the vet's the other day, gee wiz her name is Sadie, that's a really girl name so I don't know what their problem was. I always try and "see" if it's a male dog and if I still can't tell, then I ask the owner, I never like to assume either way since I don't appreciate it when other's assume the sex of my dogs.