https://www.cnet.com/news/google-was-everywhere-at-ces-2019/

And for the second year in a row, Google unleashed an army of human "Google Assistants" dressed in white outfits who looked like a cross between house painters and snowboarders. Wearing hats and jackets with "Hey Google" printed on them, the workers taught conference-goers how the Assistant worked with different products across the show floor.

Most of the white-clad Google workers I approached declined to be interviewed, because they said to refer questions from the press to Google's communications department. But one worker I spoke to said Google found him through a temp agency.