Someone on the internet pointed out that there are two things that men should understand in order to evolve beyond neandertal/patriarcy mindset.

• being nice does not entitle you to sex, it is the bare minimum (on which you can (and should) build up from) – you can always improve!
• sexism is not ok. never.

But I also found out (by talking to people and observing people) that many men are not even aware they are being sexist. This may have multiple reasons (I blame the parents but it could also be something hard-wired.. or hormones.. or a combination of the three…)

Anyway: it’s called “The Rock Test” 
Source: Medium

it basically comes down to:

before you open your mouth and make that comment, replace the visual image of the woman with The Rock. Would you still make that comment?

or. as the author said herself:

It’s as clear cut as this: Treat all women like you would treat Dwayne “The Rock” Johnson.