I was on my phone going through google play store, a recommended app showed up because my sister had written a review. What would do you think is information flow that transpired. Is it that she and I have each others email? And anything that someone has written whose email i have in my contacts will then show up? So if i write a review, it will pop up for anyone who has my email? (i don't have g+ so i can't write reviews, but just trying to figure out the flow so i know).
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