There is always more to learn and different options to try in bridge. Whether it is learning the game as as a beginner, reinforcing the principles with improver lessons and supervised play, or understanding or refining play tactics or bidding gadgets, bridge offers ongoing mental challenges and individual and social learning opportunities for those so inclined.
Many clubs offer lessons and supervised sessions - see those by participating bridge clubs. Many find face-to-face group learning a fun social option. Other players prefer to read bridge books and articles in their own time. Others still may be attracted to some of the great interactive bridge learning and playing software that is available. See on this site for further information.
And of course there is always the productive and satisfying option of discussing hands just played after a session with a glass in hand at those clubs with these facilities.