When in noisy environments (which include tourism hotspots with several simultaneous guided tours), in loads of spots I've taken tours in, the response is to face nearer on the guide. I have viewed Practically only in China that as a substitute, tour guides only try and be even noisier ... https://tourguidewithflag87653.dbblog.net/5208791/the-basic-principles-of-tour-guide-flag