+1 to both. I always thought this approach was horribly underrated. If someone is going to have a super loud conversation, why not jump in and offer your own opinions?
Last week some guy was shouting "HOW ARE YOU?" into his phone in the middle of a quiet area of the AC. Because I couldn't tell if he was speaking to the other person or to all of us (
), I answered with a resounding "FINE! AND YOURSELF?" The call got much quieter after that.