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At the Mobile World Congress, Nokia showed three new Android phones, but the one that got the most attention was the rebooted Nokia 3310, which is essentially a lowly, cheap feature phone... but... it has snake!! Facebook's reactions just turned one and the company is finally revealing how its revamped like button impacts your News Feed. It turns out the company weighs reactions — love, haha, wow, sad and angry — over "likes" in determining what content to surface in your News Feed.