Yes this is easy bro
IF you want to use neg on the whole group when they discussing something about what guys they like etc.
Say something like " I'm tired of dating girls with low self esteem who have bunch of complexes and want to get plastic surgery, but you girls are not like that, are you?"
You can ask them stuff like: who you think lies more men or women? and bla bla bla, after that ask who is a better lier and bla bla bla, who can keep better secrets etc etc.
You can discuss the social differences between men and women. I sometimes talk about a test ive seen on tv. Basically there was a very good looking guy and he would ask girls randomly if they wanted to have sex with him, all of them said no, then they did the same test with a girl and all the guys would say yes. Later when they went back to ask the girls who were asked by the guy, they said they wanted but it would make them look like sluts.
So why is ok for guy to go and F as many girls as he can and this makes him better than other guys and more attractive for girls, while a girl who goes and F all the guys gets a very low social status and most likely guys and girls stay away from that person.
There is bunch of other stuff you can talk about, stay with sociology, read few books on that, girls will be very impressed because you will know about the "irreconcilable disparity between the sexual and emotional needs of men of women" and what 99.99% guys dont know.
Read:
My secret garden: Nancy Friday’s
Secrets of Female sexuality- David Shade's
will help you understand women and why they talk on the cell phone for 8 hours and why 50 pairs of shoes is still not enough etc
Good luck