If you have decided that the baby model castings is a good option for you then the next step is to search out ones that suit you and your child. Unlike the baby modeling agencies, the casting calls are often advertised both locally and on the web so should be relatively easy to find. There are however two points that I would note before you attend:
1. Make sure that you choose casting calls that are fairly local to you unless it is for a really major campaign. The reason for this is that the casting call is in a particular region for a purpose and you may need to travel back and forth quite a lot if you land some work.
2. Check out the reputation of the casting agents if at all possible. As with baby modeling agencies there are scam artisits out there that will charge to be considered or will cheat you on commissions and the like which will mean even if you win at the casting call, you really lose.