There is a difference between being friendly and becoming friends. The latter is dangerous and you will be fooled in thinking your coworkers actually care about

There is a difference between being friendly and becoming friends. The latter is dangerous and you will be fooled in thinking your coworkers actually care about you and you need to drink the corporate kool-aid, work overtime and be a true best friend to everyone. If you are going out binge drinking with your co-workers, you're doing it wrong because it blurries the lines between professional and personal life in my humble opinion. Very few deep friendships develop at work, at best they will be acquaintances you see once in a while. So by all means, be nice and cooperative but keep your distance.