So a coworker who normally works from home in NC spent a week in my office here in VA last week. Usually she sits in the conference room, but this time she sat in my office with me. Her native language is spanish. Many times she held conversations on the phone in spanish, and a couple of times people came into the office and had conversations with her in spanish.

By the end of the week, Google was serving up my ads in spanish. Like the Verizon ad was in spanish. I don't know any spanish, she didn't use my laptop and I never searched on anything spanish. I'm telling you they are listening.