The good news is, that there are lots of things you can do, NeR. First of all, a good listener's always appreciated, so when a convo starts, try and show an interest, and then perhaps ask someone to explain a little more about their opinions. You could be open about your lack of general knowledge, or current affairs, and suggest going for a drink one night after work, where in a more relaxed atmosphere you can explain how you feel. On a practical side, reading the daily papers, watching the news - you can learn from this. If you have a hobby or interest, you could mention it, & ask if anyone else likes doing it. Then ask what they all get up to, out of work. Never pretend to know more than you do., and always try to show a general interest in things. Having a laugh is also a good ice breaker. Best of luck.