The relationships you build with colleagues — inside and outside the workplace — are one of the most consistently overlooked contributors to how well and how happily you move through working life. Good colleague connections reduce stress, increase engagement, and make even difficult weeks feel more manageable. They do not require you to become someone you are not. They do not demand a full social calendar or an open-door policy on your inner life. They require something smaller and more sustainable: a little warmth, some consistency, and knowing where your own limits lie. This post explains the evidence, explores the balance, and offers practical ways in — especially if the idea of workplace socialising makes you want to eat lunch alone in a stairwell.