Most of the nerds speak very less except the topics they like. Even I do that. Even my silence is arrogance for my office staff. They gossip about me like 'that guy don't teach us anything, that guy don't talk to us at all,etc,etc'. I stopped talking to girls when I realized that they want to sleep with someone else and just want knowledge about technical stuff from me which will be useful for them to get promotion. Even if I speak to one girl others become jealous. And I am sick giving explation to those emotionaly disordered people.