On Facebook.com, hover the mouse over the Like icon. A pop-up box of reactions appears above it. In the mobile app, long press the Like icon to trigger the reactions to pop up. To see a breakdown of ...

In a hilarious Instagram video from @itsmarinaachris, a 5-month-old baby girl sits on a carpet in a onesie, reacting differently when her mom and dad sneak up on her. She looks calm and totally in her ...