Bosses are people, too, and many of them aren't gifted with a strong poker face.
Watching your boss' behavior, especially when he or she is interacting with you, can tell you a lot about how secure your job is, Kane says.
"If they used to socialize and now they don't, if they're not as friendly as they used to be, if they won't look you in the eye and they used to look you in the eye, then you can pretty well guess that something is going on," Kane says.
How to fight back: Of course, it's better if you and your boss maintain a good relationship, but if you sense some social weirdness from your boss, the best thing to do is to step up your game at work, Kane says. Regardless of how they feel about you as a person, the No. 1 metric bosses use to decide who to keep and who to let go is job performance, he says.
"There are a lot of managers who don't necessarily have a good personal relationship with a person one or two levels down, but if they're producing, they're not going to cut off their nose to spite their face," Kane says.