But I (and probably no one) trust(s) all my friends about every topic or type of product/service. So better to show me the ad and which friend(s) gave the revi

But I (and probably no one) trust(s) all my friends about every topic or type of product/service. So better to show me the ad and which friend(s) gave the review so I can determine if that is actually a mark against the ad or not.