I do do that stuff, I smile, I say hello to people and show politeness when I communicate, I try to talk to other parents when I pick up my kid from school, I've recently done a load of voluntary kids/ charity discos in a local pub, I used to work in a charity shop, I often try to keep homeless people company (I used to do that more, but I still do it when I can now). People just see the make up or the clothes and think I'm just seeking out my next virgin sacrifice.
Some days it doesn't bother me, but a lot of the time I just feel so damn lonely and unlovable.