We all wish we could read read the boss's mind. Are we doing a good job? Are layoffs coming? Will you get that holiday bonus? This leads us to scrutinize behavior for hints. We ponder the boss's tone during meetings, body language -- even the way they sit at their desk. One normally-positive signal is probably giving you the wrong impression, however.A new study suggests bosses smile the most and biggest to employees who are least powerful and important.

That's right! If you get a big grin every time you pass him or her in the hallway, it might be a diss!

Whoa! That's going to play with my mind now. What about you?