Thinking about how as a quieter and more soft-spoken player a very useful tool to have at the table is a polite indicator I'd like to speak. The X card carries a lot of negative connotations, an indicator that something has gone wrong, but I think it'd be great if more books formalised raising your hand or another indicator for wanting to speak when others are doing so, without having to talk over them or cut in inappropriately. I often get frustrated when I try to say something but have to start several times since someone either (unintentionally) speaks over me or doesn't hear me so I have yo repeat myself several times. I just think it'd be neat if there was a tool in games that was like "Oh, hey, I'd like the spotlight for a moment please".