Sometimes, I just don't feel like speaking. It doesn't happen because of any particular mood or event or reason, I literally just don't feel like using my voice. It doesn't hurt for me to take that extra second to just sign or write it down. I don't mind if someone is speaking to me, and I'm using nonverbal methods, although that can be annoying to a lot of people. So it's not about noise. I'm not sure the reasoning behind why I do this sometimes. Is this normal? Or am I just an ass?