It is interesting that the terms 'nerd' and 'geek' are usually applied to the male gender and that may be because - sweeping generalisation alert - they appear to be more pastime/hobby/enthusiast/fancier orientated. Perhaps they have more time on their hands? BTW Bob - how would you define an 'effeminate' man? Are you referring to those of a homosexual persuasion or those who are in touch with their feminine side?
On the subject of hobbies - I wonder if this is a cultural thing. It might be that young boys are more often encouraged to persue their hobbies and interests. I can's offer any observations about young girls cos neither I nor my brother was one. And I suspect that by the time we stopped being scared of them, and actually started liking them, this was unlikely to be the kind of question we were interested in. So what do parents get their daughters doing?
[rab] good question and one which I'm sort of qualified to put my two pennorth in, being the only girl with three brothers as well as mother of girls. Boys [in general] are happy to pursue a hobby on their own. Girls [in general] are more responsive to peer group pressure and prefer to do the hobby stuff with their friends. My 13-year old is far more enthusiastic about the drama club that all her cool friends attend, than the piano lessons where she has to go it alone, even though she is far more talented piano-wise than drama-wise.
As a child I spent a lot of time playing with my brother. As he was older this generally consisted on him chasing me, him jumping on me, him spraying me with a hose then locking me out of the house. And other activities like rugby, scalelectrix, hockey and taunting. But I did possess dolls and played with them with my female friends when I wasn't being terrorised by my big bro! My mum was particularly keen for me to persue my hobbies chosen by her, eg piano and violin practice which went down about as well as the insults from my brother!