voice and language

My voice and language changes alot depending on who I'm talking to... If I'm talking to my friends and some members of my family I talk informally and relaxed. When I talk to my teachers I speak more formally. I like to think that I speak with respect no matter who I'm talking to. When I speak to my co-workers it can either be work related which is a more serious conversation or more of a personal conversation which is more informal. My voice and language usually go together.. If my voice is relaxed and informal usually so is my language and if my language is formal and "down to business" usually so is my voice. Sometimes I try to hide what I really want to say or how I really feel through my voice and language by trying to make one or the other sound or seem like something else.