Develop your vocal skills. Study with a voice coach who can teach you how to use your voice properly. Important singing skills include warming up your voice, expanding your range and learning how to sing expressively.
Look for local ads in your newspaper or online. Many singing groups advertise when they are looking for new members.
Attend a local church and inquire about the music program there. Churches often are searching for choir members, as well as members for smaller vocal ensembles.
Record yourself singing. Create copies of your recording so that you can give them to singing groups who might be interested in recruiting you.
Learn a wide repertoire of songs. Include music from multiple genres. If you have to audition for a group, you'll have an arsenal of music ready that you can use to showcase your abilities.
Learn to play a popular instrument such as the guitar, keyboard or drums. This makes you more valuable and versatile as a potential member of singing groups that use live instrumental accompaniment.