1. We've discussed this question with сolleagues, and one of them discussed with his wife bout with the gloves for his son, and on the next day he a received ads with bout with the gloves. Аnd it was not like that once. I do not claim that it was google, may be other ads company, but it is a fact.

2.Once a work colleague said me "Hey, listen my phone (nexus 5x)". From conversational speaker we heard as other people said! nexus 5x was on standby state! According to the conversation, I think that people did not talk on the phone, but offline.

sorry for my english ).