My mother taught me that women put their hands on their hips with the finger pointing BACK, thumb in front. Men put their hands on their hips with the fingers pointing forward, thumbs in back.
I would not put much faith in this. My mother taught me many things that are out of date now. Like a lady does NOT leave the house without her gloves. A lady ALWAYS wears a slip. A lady NEVER wears jeans. She cleaned the house in heels.
S