Delusions of Gender is fantastic although be warned, it will make you even more angry and spluttering whenever somebody brings up supposed gender differences!
It's like those books, Men are from Mars etc. Yes they are excellent at spotting and laying out patterns of behaviour. But then they attribute them to a load of utter bollocks about caveman shit. And surprise surprise, it becomes women's responsibility to put up with, understand and work around men's differences but not for men to do anything more than a token effort to understand their wives or girlfriends. So although I can see why the book is extremely popular, it makes my blood boil.
I mean, just from your last post. Of course men can also multi task. Men generally consider themselves the best drivers on earth FFS! What this usually means is that women are considered adept at combining childcare and housework, which is mainly because we have had more practice as it has always fallen to women. Throw somebody (of any gender) right into the middle of juggling such a thing with no experience and they will struggle.
Noticing new haircuts. Women are taught from very small that appearance is really important and that to be nice to a person you must express approval of their appearance, to ignore or express disapproval is the ultimate insult. Hair is also important - how many little boys do you see with hair clips, alice bands or ponytails, ostensibly used to keep hair out of girls' eyes? How many little girls with short practical styles? Long hair is regarded as feminine and the idea that we can do 1000 different things with our hair is sold to us as fun, which of course it can be, but it's sold far more to little girls as a fun activity - it's assumed that little boys won't care. When a man gets a haircut, it's maintenance - you're not really supposed to notice. When a woman gets a haircut, it's often a fairly dramatic change, so she expects a reaction. But men who are socialised not really to care too much about hair often don't notice.
Similar with birthdays - it's trusted to women to remember. They often don't magically hold them all inside their heads, but use a calendar or diary. Men could do this too, if they wanted to, but they've never really needed to because typically there has been a wife or mother around to remember it for them. Hence they don't understand why it's so important, because it's never been their responsibility.
(I'm getting bored so will just do a general one for men) - science and shelves. These tasks are considered masculine because they have an element of risk and possible injury or messiness, all things that girls are discouraged from from a very early age. Most small children want to avoid things that hurt them but boys are socialised to be brushed off and told "it doesn't matter, man up". It would be considered quite ludicrous for a man to feel worried about scraping his skin or getting chemicals on himself. On the contrary, men should be comfortable with these kinds of risks, because (they are told) they are strong, not delicate. It's true of course that somebody has to do this kind of work in life because it's necessary, but there is no reason except socialisation that the people to do this kind of work ought to be men. It even links back into appearance as well - if a girl is wearing a "pretty" dress (or nice, fashionable clothes when older) she might be told or she might in herself be anxious about spoiling it and hence want to avoid risky or messy behaviours. Boys' clothes are not designed with this kind of thing in mind and boys are not usually told to pay much heed to this except perhaps if they are very dressed up for an occasion. It's not a natural thing for a young child to worry about making a mess except when they don't like the feeling of something being on them.