People at work aren't necessarily your friends, and it makes sense to be friendly, even if you're not friends. But it doesn't follow at all that you can't make

People at work aren't necessarily your friends, and it makes sense to be friendly, even if you're not friends. But it doesn't follow at all that you can't make friends at work, even that it can't be a good environment for doing so. On the other hand, it also doesn't follow that such friend-making come out of nothing, or that it's easy - which I guess is really the subject of the article.