I'm a woman so not sure if I should post!
It kind of runs through society, a casual misogyny but also a 'not my problem' mindset.
And I know that it's really hard for men to challenge other men at work etc.
But stuff like.
If there's a rapey joke or talking about a passing woman's body then don't signal any approval. Don't need to say that's out of order or have a row. Just. Wander off if it's at work. Don't smile. Look po faced...
If there's a woman at work and a man says something sexist then support is appreciated. The amount of times I've pulled a man up on something they said, he argues, and loads of blokes stand around looking uncomfy. Then find you after and say how awful he was. Just. I agree with her. Or. That's out of line.
If you're in a pub or somewhere and see a bloke hassling women then tell the staff. No need to get involved. That's easy.
I would think that if eg I was on a tube station or somewhere and a man came up and said there's a girl over there and that bloke won't leave her alone and she looks worried I don't suppose you could check on her. I think it would be better from a woman. I would say oh thanks great and go off and see what was happening.
If there's serious stuff happening then call the police. Shout I've called the police if you want. Again no need to go steaming in.
Stuff like that.
Loads.
You see a bloke staring at a woman on the train. Make eye contact with him. Let him know you've seen. DH did that to s man watching porn in s family cafe once and he looked sheepish and stopped.
The little tiny things that add up to a sense that no, this is not acceptable in our society, is the only way to get things moving I think.
Sorry that was long. Don't know if useful.