Decide what you can offer. You may be a whiz in grammar or writing--you need to know what you can do best before you offer your services.
Check out the local schools. It is always a good feeling to be able to help in your own area. The teachers of local schools may have already spoken to some parents about getting tutoring help for their child. They can point you in the right direction.
Contact the parents to learn if they are interested in getting a tutor for their child. Just because the teacher recommended it doesn't mean the parents are on board.
Meet with the students to see if you are a match or not. There are some students who just may not be able to work with you and visa versa. The main idea is to help the student succeed.
Set up a schedule. You only want to work with one student at a time. Make sure it is a convenient time for everyone involved. You may be able to tutor more than one student at a time, but it is better for the student to have your undivided attention. This way you will be able to judge if he is really learning.
Use the Internet to find tutoring jobs and work from your home. You don't have to have face-to-face contact with your students and this may work better for you.