"Laugh, and the world laughs with you; weep, and weep alone." So wrote the poet Ella Wheeler Cox. Emotions are catching, and most people intuitively seek out the positive while___1___the negative. The exception, however, is those who are suffering from depression. The depressed___2___emotional facial cues, finding gloom and doom where others see contentment. We're generally pretty good at reading the emotional expressions of others as portrayed on their faces, at least when it comes to the___3___ emotions, like happiness, sadness, and anger. We read the emotions of those we're ___4___ with and regulate our own mood in response. After all, we can't cooperate___5___with others if our emotions are out of sync （不同步的）. Crying at a party will likely get you shunned （避开）, as will laughing at a funeral. You've got to express the right emotion for the___6___Facial expressions of emotion are inherent, but we can___7___or suppress them. Even though you're feeling down, you may decide to put on a happy face at a party just to get along. And since others then___8___ to your positive expression, you might start feeling better as well. Our natural ability to read emotional expressions on the faces of others___9___down, however, as we fall into depression. The depressed can still read obviously happy or sad faces, but a problem___10___when others display ambiguous feelings. This can occur either because the other person is trying to suppress their emotional expression, or because they aren't sure how they feel at the moment.A. arisesB. avoidingC. basicD. breaksE. conditionF. contactG. deadlyH、effectivelyI、 fakeJ、 functionsK、interactingL、 misreadM、occasionN、respondO、significant