I'm not really susceptible to peer pressure (unlike my brothers)unless I'm drunk any way. I tend to do things based on my own rational, I do however tend to act different on the first day at doing some thing, like say college, every time on the first few days of college before I've gotten used to every one I tend to speak in a weird Irish accent despite never ever visiting Ireland (I am of Irish ancestry only English by 4 generations) and I don't speak as much, but I think that's more a result of shyness then peer pressure.