My cat used to give that 'growl-meow' when she would bring me a toy, it ALWAYS scared me until I figured out that was her calling kittens to dinner noise! Then I thought it was SO cute!
my kitties are a mnth old now but i still cant tell which is a girl or a boy. other than the sizes. 2 are big and 1 is small so we assume the smaller ones a girl and the rest of the 2 are boys