How do you change a personality?

i looked it up on google already, but all i found was things like be more this be more that. What i was really looking for is how i can change the way i speak (vocab wise) and the words i use. Ex; i use a LOT of sarcasm, slang, swear words (actually more like substitute swear words) and yea. I can talk to people easily, so making a friend is easy but keeping that friend and not making them think i'm totally weird (which i really am) is kinda hard. got any tips? anythin'?How do you change a personality?
Reading...reading helps me learn and often enough I start using vocabulary from books. Everybody is weird in some way, or as Jim Morrison would put it.....strange.How do you change a personality?
being you is great..to be a natural person is good..you don't need to change your personality just because you don't want somebody to tell you like your being mean or weird, i my serf you are not perfect person,sometimes we made a mistake, by our mistake we learned..
Try speaking slowly.. if u rush it comes spontaneously...when u speak slowly ur conscious mind becomes open to reception and then put the words that doesnt sound weird for you. u can better maintain diary and add what to speak add what not to...