Professionals

The people you spend time with inevitably affect your attitude and outlook. By hanging with the complainers and the co-workers who cut out on Fridays at 2:30 p.m., you will almost certainly adopt their habits. Better to befriend those who tend to populate the top of the performance charts, the true professionals who are more likely to be promoted. These are the people who are going the places you want to go, so it makes sense to tag along.