Haupt is a health and wellness editor at TIME. Haupt is a health and wellness editor at TIME. It’s hard to think of four words more smug—and infuriating—than “I told you so.” “It feels like you’re ...

For most of us, telling someone you appreciate them is easy, but knowing what to say back can actually be a whole lot trickier. Turns out, there are actually lots of ways to respond to "thank you" ...