There’s no question we all need to take some “me time” now and then. But if someone needs their “me time” all the time, they might be suffering from narcissistic personality disorder, the mental disorder that’s characterized by a too-strong sense of self-importance, a lack of empathy for others, and a constant need for admiration.

Narcissistic personality disorder can present in various ways. So while some narcissists may just love the sound of their own voice (you know who you are), others can actually exhibit pathological symptoms as a result of the disorder. Yikes.

Luckily recognizing the telltale signs of the mental condition can help you steer clear of narcissists. Some classic tip-offs? If someone needs to be the center of attention at all times, or requires that their needs be met immediately, they probably think they’re the best thing under the sun.

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And don’t get us wrong; we’re all for self-love! There’s nothing more important than recognizing your worth. But when individuals don’t take responsibility for their actions, or take advantage of people in order to get ahead, putting themselves first becomes more unethical (and often hurtful) than healthy.

In this video, we’re highlighting eight standard ways that narcissists operate. Watch the clip above to get familiar with their grudge-holding tendencies and overly competitive nature, so you can spot the next narcissist you meet—and sidestep a potentially flawed relationship, be it with a partner, coworker, or friend. You’re welcome.