Question..??

I have a tendancy, when excited (and sometimes when not), to be talk louder than need be in public places (mall, Walmart, parking lots, etc).  I don't do this in places where being loud would interupt other people's activities (libraries, nice restaurants, movie theaters, etc), but sometimes the people I'm talking to get more agitated than need be (I think).  My mother, brother  and husband for example.  They act like its embarrassing that I am being louder than is probably necessary - I'm not sure if they are embarrassed for themselves or for me.  Either way, I think its stupid, and telling me (the way they do) that I am being too loud and they don't like is not going to make me shut up - in fact, considering the way I am and my personality, its more likely that I will continue or even get louder.   I realize that I am not always totally in cue with proper social behavior, but I don't understand why me getting a little excited and loud is such a big deal to them.  Probably if they told my politely that I'm getting loud and asked nicely that I be a little quieter, then I would (I say I would because I have a friend who has a problem with me being loud [not necessarily in public - its not an embarrasment for her] and she is generally nice and polite about it and I attempt to control my volume).  I know its a nice thing to think of others, but I am not about to think about possible discomfort to total strangers when I am in a PARKING LOT!  If it is bothering someone, I doubt I will be in hearing range of them for very long - like I said, I don't do this in places where you have prolonged contact with people and/or where it might annoy/bother them.  

Ugh...  human social interactions/rules are so stupid...