If you enjoy bowling and would like to do more of it, you may want to join a bowling league.
The first step to joining a bowling league is locating an appropriate bowling alley. You will want to make sure the alley is convenient to your work or your home. If you'd like to bowl during the weeknights, be sure to check the traffic between the alley and your work, especially if the league starts in the early evening.
Once you've located a good bowling alley, you will want to ask at the front desk to find out who is in charge of the leagues. Most alleys have a specific person who's in charge of coordinating and promoting league play. That person can answer all of your questions regarding the leagues and teams at that alley. You may also find several notices posted around the alley announcing various leagues. Most bowling alleys host league play, and the leagues generally have specific seasons. You may find that it's mid-season; if so, you may need to wait until the next season to field or join a team.
You may find women-only or men-only leagues, leagues that drink, leagues that don't, those that are specifically for couples, or some that are co-ed for single people. There is endless variety, so decide what you want to get out of the league besides enjoying bowling, and that will help you determine which league you want to join.
If you have a group of friends that all want to join with you, you will want to ask the bowling alley league manager which leagues have room for additional teams. Depending on the number of lanes the alley has, there may or may not be room to expand the teams. Most alleys like to reserve at least a couple of lanes for open bowling, so even if there are 20 lanes, there may only be 16 teams allowed on the league.
If you're joining the league by yourself rather than with a group, you will find that you'll be able to find a spot relatively quickly. You may even be able to get on board with a team mid-season, if one of their regular players has dropped out.
Teams will generally let the league manager know if they need additional players for a particular game, so you could quite simply show up at the bowling alley on a given evening and be playing that night.