My voice changing...haha

My voice changes whenever im around friends im more comfortable regarding language whether it be more cussing or less.  Around teachers, im polite.  Around adults in general im respectful and watch my language, but when around my brother and close friends its whatever comes out.  My language isnt that profane anyway so i don't usually have to watch it.  if you speak maturely in front of adults, cussing happens, its when you overly use "bad" words that makes you come off as either un-intelligent or just simply without care for what comes out of your mouth.