Yes, but activities can be a decent jumping off point. I always suggest meeting your co-worker's friends. You'll probably not make real friends with co-workers

Yes, but activities can be a decent jumping off point. I always suggest meeting your co-worker's friends. You'll probably not make real friends with co-workers directly, that's too dependant on the point of contact and physical proximity. But they can introduce you to other that can only become friends with chemistry.