Everything you do and say and much of what you choose not to do or say, has an impact on someone else. Sometimes lots of someone elses. Being thoughtful, pausing and having the courage to step up and speak out are all good ideas, depending on circumstances.
The people in your life will appreciate you acting in bravery even if you are a bit wonky, initially. Standing in your own power and truth is the most courageous thing you can do today.
Go for it!