People Acting Weird

There is one thing that sort of really pisses me off. People sometimes pretend to be something they aren't. There are many times when that happens, and it really gets to me. Lets say we are hanging with a bunch of friends. There is someone that you know doesn't talk a certain way. When they come to be around people, they start acting up and try to be something they are not. This happens a lot, and sometimes I do it without realizing as well. I guess it might be that when you are with certain people, you get into that environment and start talking like them which isn't always a bad thing, but sometimes we have to watch out because we can lose ourselves and become something that we aren't. I think what I'm trying to say is be cool but don't lose yourself and become something your not, and I speak for myself too, but I realized I really don't lose myself because of the surroundings I am in.