According to GottaBeMobile’s Xavier Lanier, who also posted the picture above, the Google Research booth on Union Street screened “qualified” passerbys with an insights survey:
I found the Google booth to be out of place amongst the other booths, most of which were selling handicrafts and food. I asked a Google employee what the booth was all about and she said they had something to show people that hadn’t been released yet. I asked to see it, but was told I couldn’t see it unless I “qualified.”
Outside the booth is a table where research candidates are screened with a survey. The Google Docs survey, which can be completed on either a Google-supplied MacBook Pro or Vizio Android tablet, is designed to identify physically active smartphone users that are parents and at least somewhat interested in new technology products. The survey is also used to screen for those who actively use social media.