I dont think people are born negative, i think most of us are influenced by our environment some how some more than others and if all your environment tells you is your no good and wont amount to anything then you start to believe it, and in turn appear negative.
mystery, were all biological organisms wanting to survive and were hard wired to unsubconsciously pick up those signals. a man needs to demonstrate certain traits depending on the female and the enviroment she wants to survive in. ie (social enviroment) confidence, humour, intellegence, individuality, loyalty etc.
RE: why are some people born negative
I dont think people are born negative, i think most of us are influenced by our environment some how some more than others and if all your environment tells you is your no good and wont amount to anything then you start to believe it, and in turn appear negative.