You know that colleague: the one who is cooperative and nice when your boss is in the room, but completely changes their behavior the minute you’re alone. It’s tempting to rat the person out to your boss or to call out the inconsistent behavior. But for the sake of your career, don’t play their game. Badmouthing the person to other colleagues or rolling your eyes when they speak will only make you look bad. Instead, stay positive. Keep it cordial and constructive. Focus on the work you need to get done together, not on their behavior. Remember that good bosses aren’t duped over the long run. Chances are, your manager will eventually see through this person — or already does. The behavior will eventually catch up to them.
Adapted from "How to Handle a Colleague Who's a Jerk When the Boss Isn't Around," by Amy Jen Su
