In a general sense, positive affirmation.
There's a lot of women highly negative towards each other when they have never interacted previously, especially if the other woman is good looking.
My wife and daughters have dealt with dirty looks, catty behaviour and backstabbing their whole lives.
Even in line at a store my daughter and I were just standing there waiting, and the next lady in line sees my daughter and immediately shoots daggers from her eyes. It was so obvious my daughter and I burst out laughing.
My wife makes it a point to compliment other women. Like: I like your dress, you makeup looks amazing, thqt colour looks great on you, etc. It is so foreign to many of the recieivers that they don't know how to respond.
But recently she did run into a lady again, that remembered her from a comment, and came up and thanked her for the good vibes, saying it stood out to her and made her day. And that no random lady has ever given her a positive comment.