Spot the toxic waste before it gets too close. We all have our down days. But when it comes to toxic people, the blues are a constant rain cloud. And they want everyone to be just as wet and miserable as them. If you never see emotions other than anger, sadness, and jealousy, it is best to steer clear of that personality. Keep an eye out for the following toxic traits: Jittery, nervous energy. Constant whining and complaining Clinginess and dependency Criticism, usually aimed everywhere Negative or cynical worldview And in extreme cases, abuse.