here’s what you do when you are having dinner with a bunch of people and there are several conversations going on around you but you aren’t a part of any of them and you and one other person are the only ones not engaged in conversation and you know at any minute that person is going to start talking to you but you don’t have anything to say, tilt your head back and forth from both conversations going on and act like you are already participating. it helps if you smile too. smiling is like talking for deaf people.