I like talking to girls more too. Girls never go "OMG u fcukin n00b i 0wn3d u ur mad *** scripter" or anything of that sort. They usually are more interesting than guys too, because they have more to say.
Slightly Offtopic: Around here, in Boston the thong has become very public. It is now VERY common for girls to be wearing low cut jeans and baby t's and every time they sit down the damn thing is in your face. I won't lie, I like it as much as the next guy, but that is a pretty good way to tell if someone's female or not on the internet. I know a lot of girls who DO like wearing them (or so they say, at least), but seldom will a girl actually bring it up.
VB is right, you can just tell when it's a girl. Not as much "internettery" in the speech and stuff. Well...assuming it's an intelligent girl. If not...then...well...look for pink font, I guess? lol