Breed and when the cats were spayed/neutered has a lot to do with temperament. I had a boy kitty who was a brazen manwhore for attention. My current female kitty is standoffish. The female is a Persian mix and was spayed after first heat. The male was a tabby/Siamese mix and was neutered very early. And my cat just got on my daughter's lap... Trying to prove me wrong. Typical.