Practice Games
Ask around and see where more serious players go to play pool. You will probably find that these are places with the best tables. To begin with it may be an idea to go at a time that is quiet so you can get plenty of practice in. Take a friend with you and build up your confidence to play others. When you feel ready try to visit at a busier time. Try to play others, watch and learn from how they play.
Joining a Pool Team
A brilliant way of improving your skills is to join a team. When doing this consider what stage you are at and what you wish to gain. In the beginning it may be an idea to find a team that likes to win but does not take it too seriously. You can have a lot of fun while improving your game. If you want something more competitive in the future you can alway look around for another team to join and with your new skills they will all be queing up to take you on!
Have fun!