How do I come more bold and blunt?

whenever I come into work they are always complaining about someone I always never try to talk about someone. but it bugs me, I always try to stick up for people but sometimes I stick up for them. I don't know I just have no time for petty BS.

it's so annoying and bothers the fuck out of me. I'm introverted but I always try to stick up for someone if I know they are being mean. I'm trying to be more confident baby steps. I wanna be confident and speak my mind when something like this happens and sometimes I just sit and listen because there's no reasoning with them. Am I a bad person for this? How can I be more bold?
How do I come more bold and blunt?
Post Opinion