Evaluate your purpose for drawing lessons to determine what type of lessons you want to take. If you want to learn manga for your own enrichment and have limited time and resources, a free tutorial may be the route to take.
Check out books about manga drawing from your local public library. This can give you some background on the art, as well as some basic lessons in drawing manga characters.
Call your local college or university's art department or browse a course catalog to find out whether it offers manga classes. If you are thinking about becoming a serious manga artist and do not have a background in art, you may benefit from some art and art-history classes.
Go to a manga conference, such as MangaNEXT, to learn about opportunities for taking drawing classes.
Gather the materials you will need for your drawing lessons. You will need a table large enough to hold your supplies. Purchase pencils, paper, erasers and pencil sharpeners.
Begin your lessons in manga drawing with an open mind. Know that for some people, drawing does not come easily, and it may take time before you are satisfied with the way your art looks. Be open to constructive criticism from your teachers.