When in noisy environments (for example tourism hotspots with many simultaneous guided tours), in a good amount of sites I have taken tours in, the reaction is to stand closer into the guide. I have observed Practically only in China that instead, tour guides basically try to be even noisier https://personalised-tour-guide-f42716.blazingblog.com/31889422/not-known-facts-about-tour-guide-flag